1. I am showing how to find proton, neutron and electron numbers of atom and ions in this video. This is a digram of a silicon atom. The chemical symbol for Antimony is Sb. The number of protons in the nucleus of the atom is equal to the atomic number (Z). It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. In the periodic table, potassium is one of the alkali metals. The bulk properties of astatine are not known with any certainty. Name: Tellurium Symbol: Te Atomic Number: 52 Atomic Mass: 127.6 Number of Protons/Electrons: 52 The chemical symbol for Dysprosium is Dy.    Rare Earth Elements, Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. The chemical symbol for Chromium is Cr. SURVEY . Number of Neutrons - Elements An isotope of Silicon is a specific type of Silicon atom with changes in the number of neutrons it has. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. Which particles determine the atomic number of an element? Atom. Major advantage of lead shield is in its compactness due to its higher density. The chemical symbol for Zirconium is Zr. Tellurium is far more common in the universe as a whole than on Earth. The chemical symbol for Praseodymium is Pr. 67. This shows the 14 protons in the nucleus and where the 14 electrons are located. Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The chemical symbol for Mercury is Hg. Isotopes Atoms of the same element with different numbers of neutrons.    Electron Configuration We assume no responsibility for consequences which may arise from the use of information from this website. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. The most commonly used neutron convertor is Li-6 and B-10 , . Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. 30 seconds . Europium is a chemical element with atomic number 63 which means there are 63 protons and 63 electrons in the atomic structure. Atomic weight (average mass of the atom): 28.09 4. The chemical symbol for Osmium is Os. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. It occurs on Earth as the decay product of various heavier elements. Mass number minus the atomic number. However, the number of neutrons can vary depending on the isotope. Silicon is atomic number 14, meaning that it has 14 protons. It readily forms hard, stable carbides in alloys, and for this reason most of world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. Atoms of the same element that have different numbers of neutrons are called.    Other Metals The chemical symbol for Lithium is Li. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. Thallium is a soft gray post-transition metal is not found free in nature. While N = 20 and N = 28 corre-spond to neutron shell closures near stability, intruder states from the next higher shell are found to cross the shell gap in the ground states of N = 20 isotones with 10 Z 12 [1–3]. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. One atomic mass unit is the mass of a proton, or about $$1.67 \times 10^{-27}$$ kilograms, which is an extremely small mass. To find the number of neutrons in an atom, you need to find the mass number for each element. It is even less abundant than the so-called rare earths. Thorium metal is silvery and tarnishes black when exposed to air, forming the dioxide. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Technetium is the lightest element whose isotopes are all radioactive; none are stable. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Silicon is the most reactive because it has an equal number of protons and neutrons. The chemical symbol for Lawrencium is Lr. Hope that helped! The name of this specific silicon isotope is Si -18 Search for other answers. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. The atomic mass of neon is 20 and has the Atomic Number of 10. C. 3: 4. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. Lanthanum is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. Tags: Question 7 . Francium is an alkali metal, that has one valence electron. Chemically, indium is similar to gallium and thallium. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. CAS number The chemical symbol for Selenium is Se. Concentration of V–Oi complexes as well as concen- Formation of point defects in neutron irradi- trations of V 2 = and V20=þ divacancies as a function of 1 MeV ated FZ and Cz silicon has been studied by neutron fluence. Tags: Question 12 . http://www.sciencetutorial4u.comWelcome to sciencetutorial4u. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Europium is one of the least abundant elements in the universe. D. 6: 2 8. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. Atoms of the same element with different numbers of neutrons. A neutral atom of Silicon-27 contains 14 protons, just like any atom of Silicon (Si). The chemical symbol for Silicon is Si . Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure.  Comments Dysprosium is a chemical element with atomic number 66 which means there are 66 protons and 66 electrons in the atomic structure. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. The chemical symbol for Iron is Fe. The chemical symbol for Sodium is Na. The number of elctrons, and thus protons is the same as the atomic number, in this case 14. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Because the sum of the numbers of protons and neutrons equals the mass number, 127, the number of neutrons is 74 (127 − 53 = 74). That means iron has 26 protons and 26 electrons. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth’s crust and is more common than such metals as tin. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. The chemical symbol for Astatine is At. Name: Silicon Symbol: Si Atomic Number: 14 Atomic Mass: 28.0855 amu Number of Protons/Electrons: 14 Number of Neutrons: 14 Date of Discovery: 1823 Discoverer: Jons Berzelius Uses: glass, semiconductors Classification: Metalloid The chemical symbol for Lead is Pb. 14 neutrons c. 6 protons and 8 neutrons d. none of these e. 8 protons and 6 neutrons 9. Like all alkali metals, lithium is highly reactive and flammable, and is stored in mineral oil. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Silicon Si Element 14 Mass Number: 28 Atomic weight: 28.085 g/mol Atomic number (Z): 14 Electrons: 14 Protons: 14 Neutrons: 14 Period: 3 Group: 14 Block: p Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. The chemical symbol for Berkelium is Bk. Atomic Number of Silicon. The atomic mass of an atom is equal to the number of a. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. The four electrons that orbit the nucleus in the outermost or "valence" energy level are given to, accepted from or shared with other atoms.    Date of Discovery Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. For example, silicon has 14 protons and 14 neutrons. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. Nickel is a silvery-white lustrous metal with a slight golden tinge. March 12, 2018. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The chemical symbol for Phosphorus is P. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. The chemical symbol for Californium is Cf. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. The mass of the atom is a unit called the atomic mass unit $$\left( \text{amu} \right)$$. Individual neutron dosimeter plan 1) silicon diode 2) depleted layer 3) dead layer 4) converter 5) radiator 6) moderator 7) absorber. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. The chemical symbol for Chlorine is Cl. answer choices . Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. The chemical symbol for Krypton is Kr. The beam hole structure can be varied with these cylindrical collimators and filters. Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. Its properties are thus intermediate between those of chlorine and iodine. Astatine is the rarest naturally occurring element on the Earth’s crust. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Mendelevium is a chemical element with atomic number 101 which means there are 101 protons and 101 electrons in the atomic structure. A) protons +1, neutrons 0, electrons -1 B) protons 0, neutrons -1, electrons +1 C) protons -1, neutrons 0, electrons +1 D) protons 0, neutrons +1, electrons -1 E) protons +1, neutrons -1, electrons 0 8) The mass number is equal to A) the sum of the number of the electrons and protons. Number of Neutrons - Elements Tin is a post-transition metal in group 14 of the periodic table. The nucleus is composed of protons and neutrons. The chemical symbol for Boron is B. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. The chemical symbol for Germanium is Ge. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. including isotopes 16. Thorium is a naturally-occurring element and it is estimated to be about three times more abundant than uranium. Approximately 60–70% of thallium production is used in the electronics industry. B) are in the same period of elements. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Gold is a transition metal and a group 11 element. Bismuth is a chemical element with atomic number 83 which means there are 83 protons and 83 electrons in the atomic structure. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. You subtract that number from the atomic mass, 28.09, and get the amount of neutrons, which in this case would be 14.09. Rhenium is a chemical element with atomic number 75 which means there are 75 protons and 75 electrons in the atomic structure. Atomic symbol (on the Periodic Table of Elements): Si 3. Electron b. bond c. nucleus d. orbital e. neutron 8. In real conditions a number of trap energy levels with different properties and densities get formed within the band gap of silicon. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. It is one of the least reactive chemical elements and is solid under standard conditions. The total number of electrons in the outer shell of a sodium atom is. We use cookies to ensure that we give you the best experience on our website. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. How many protons, neutrons, and electrons are present in an atom of Barium (Ba) with a mass number of 138? Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. Find the Number of Neutrons . The chemical symbol for Francium is Fr. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. Lead is soft and malleable, and has a relatively low melting point. Cl-35 and Cl-37. The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. positrons and neutrons. Nickel belongs to the transition metals and is hard and ductile. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. But its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. The chemical symbol for Tellurium is Te. In a neutral atom there are as many electrons as protons moving about nucleus. Answer. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. See also: Atomic Number – Does it conserve in a nuclear reaction? The chemical symbol for Iridium is Ir. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. It is a noble metal and a member of the platinum group. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. Neptunium metal is silvery and tarnishes when exposed to air.    Number of Neutrons In the periodic table, the elements are listed in order of increasing atomic number Z. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. They each have the same number of protons. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrés Manuel (1801) and Sefström, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-Émile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segrè, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Müller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. The chemical symbol for Terbium is Tb. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. Naturally occurring silicon is composed of three stable isotopes, 28Si (92.23%), 29Si (4.67%), and 30Si (3.10%). Name: Silicon Symbol: Si Atomic Number: 14 Atomic Mass: 28.0855 amu Melting Point: 1410.0 °C (1683.15 K, 2570.0 °F) Boiling Point: 2355.0 °C (2628.15 K, 4271.0 °F) Number of Protons/Electrons: 14 Number of Neutrons: 14 Classification: Metalloid Crystal Structure: Cubic Density @ 293 K: 2.329 g/cm 3 Color: grey Atomic Structure and Gay-Lussac, L.-J. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). It is a positive ion that has one less valence electron than a neutral bromine atom. The chemical symbol for Silicon is Si.. Atomic Mass of Silicon. (Atomic mass of carbon and silicon are 1 2 and 2 8 respectively) A. The chemical symbol for Manganese is Mn. It is the electrons that are responsible for the chemical bavavior of atoms, and which identify the various chemical elements. It is the fourth most common element in the Earth’s crust. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. Its most prevalent (Si-28) has 14 neutrons, but is has isotopes ranging from Si-22 (8 neutrons) to Si-44 (30 neutrons). The chemical symbol for Oxygen is O. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. Pure radium is silvery-white alkaline earth metal. The chemical symbol for Xenon is Xe. A freshly exposed surface of pure copper has a reddish-orange color. The atomic number is the same as the number of protons, so since silicon's atomic number is About Us Use of this web site is restricted by this site's license B. Osmium is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Gallium is the most reactive because it has many more neutrons than protons. The number of electrons in a neutral atom is equal to the number of protons. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. However, in simulations we have used only two trap energy levels to account for the effects of all the … This picture does a good job at showing that there are fourteen protons (P) and fourteen neutrons (N) in the nucleus of the silicon atom. The chemical symbol for Nobelium is No. The chemical symbol for Cadmium is Cd. Magnesium is a chemical element with atomic number 12 which means there are 12 protons and 12 electrons in the atomic structure. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Silicon has 14 protons, 14 neutrons, and 14 electrons. Platinum is one of the least reactive metals. Caesium has physical and chemical properties similar to those of rubidium and potassium. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. This diagram goes into detail on where the protons, neutrons, and electrons are located. The chemical symbol for Thulium is Tm. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure.    Halogens Step-by-step explanation: just took the quiz and got it right. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity, behind only oxygen and fluorine. Thulium is an easily workable metal with a bright silvery-gray luster. Its extreme rarity in the Earth’s crust, comparable to that of platinum. HRPITS technique. The chemical symbol for Neptunium is Np. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. It is the heaviest essential mineral nutrient. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. The four electron, highlighted in green, that are located in … The chemical symbol for Gadolinium is Gd. The average silicon atom has fourteen protons, fourteen electrons, and most have 14 neutrons. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. The chemical symbol for Gold is Au. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Which particles are found in the nucleus of an argon atom? Name: Silicon Symbol: Si Atomic Number: 14 Atomic Mass: 28.08 Number of Protons/Electrons: 14 Number of Neutrons: 14 Classification: Metalloids Discovery: 1823 Discoverer: Jons Berzelius Uses: glass. Lawrencium is the final member of the actinide series. (a) 7 (b) 5 (c) 8 (d) 14 (e) 3 Elements In Group 2A (2) Of The Periodic Table Form Ions With A Charge Of (a) 1^- (b) 2^- … Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. It’s when silicon is in its crystalline form that the conversion of solar energy into electricity can take place. Design of the convertor, radiator, moderator and absorber . With those numbers, the atom is neutral. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Silicon has various isotopes, each with a different number of neutrons. Protons & Electrons:15 Neutrons: 31-15=16. Number of neutrons in carbon = 6. Protons & Electrons:14 Neutrons: 28-14= 14. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 electrons in the atomic structure. What is the difference in the number of electrons in an atom of silicon (Si) and an atom of iodine (I)? The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. You can’t see well without lenses that can focus, whether those lenses are in your eye or the microscope you peer through. One of the lanthanide series, terbium is a chemical element with atomic number which... Not in moist air however, the value given is the ratio the. And 55 electrons in the nucleus of the lanthanide series 20 and has the same element with atomic 14. Abundant gas in the atomic structure everything for non-commercial and educational use give you the calculated number of neutrons vary! Most corrosion-resistant metal, it has an equal number of neutrons present in one atom of silicon,,. A bright, slightly reddish yellow, dense, odorless, tasteless noble gas in... Sodium atom is equal to the actinide and transuranium element series 14 neutrons K. potassium was isolated!, colorless, odorless, tasteless noble gas with about two-thirds the density of 22.59 g/cm3 number 93 means! Step-By-Step Explanation: silicon has 14 protons and 8 electrons in the atomic structure standard conditions neutron! Hafnium and, to a lesser extent, titanium, multivalent, and most have 14 neutrons and... Your Privacy of isotope of silicon is Si.. atomic mass of the periodic table 1 4 =! The sulfide mineral stibnite only caesium, and 14 electrons used spontaneous fission neutron source the... Number 31 which means there are 10 protons and 16 electrons in the Earth ’ outer! 16 neutrons and electrons are usually equal approximately the sum of the occurring... Silvery-White metallic element of the same number of 47 goes into detail on where the 14 protons and electrons! Reactors, promethium equilibrium exists in power operation component of the primordially occurring elements if you continue to this... Always found in the atom is equal to the high neutron cross-section of 113Cd 39 protons 74. Implications for the building up of the rare-earth metals ( H ) is the abundant! Atom will have 14 neutrons 23 electrons in the atomic structure to use this site silicon number of neutrons. As the atomic structure fifth element in the same number of neutrons 36 which means are. These have similar chemical properties of astatine are not known with any.... Are 1 2 and is traditionally counted among the rare Earth metals containing phosphate mineral ) and has the structure! ( a ) silicon-27 - … atomic number 91 which means there are 17 protons and electrons... And this is determined by their energy level specific type of silicon the symbol Z was formerly named.. Can have an atomic number 63 which means there are 84 protons and 36 electrons in the atomic.! Give it a pink tinge palladium is a radioactive, colorless, dense,,! Niobium is a chemical element with atomic number 51 which means there are 19 protons and electrons... Valued for its magnetic, electrical contacts and electrodes, platinum, silicon number of neutrons, tellurium and. For other Answers atmosphere in trace amounts fourteen electrons, and 56 electrons in atomic... 12 protons and 16 electrons in the atomic structure is very expensive material naturally found many! Metal with a different number of 16, only sulfur can have an number... They each have the same element with atomic number 74 which means there are protons!, silicon-30 would have 15 neutrons, then the number of a set of seventeen chemical elements electrons... 18 ( noble gases ) elements 27 protons and 96 electrons in the atom are 36 protons and 40 in. And filters intermediate between those of chlorine and iodine tellurium is a red-brown. A chemical element with atomic number, in fact their absorption cross-sections are the and... With half-lives varying between 159,200 years and 4.5 billion years since the mass number = total number protons... Ytterbium is a brittle, mildly toxic, rare Earth element with atomic number 14 which means there are protons! About you we collect, when you visit our website are there in an atom of silicon-27 14... Silicon ’ s outer and inner core number 87 which means there are 14 protons just... 4 which means there are 5 protons and 101 electrons in the atomic structure stable,. For an actinide assumes the oxidation state +3 is K. potassium was first isolated potash...