The chemical symbol for Plutonium is Pu. Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The mass number of magnesium is 24. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all … Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. Sodium is a soft, silvery-white, highly reactive metal. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. Atomic mass of Magnesium is 24.305 u. Magnesium. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. Carbon is one of the few elements known since antiquity. The chemical symbol for Barium is Ba. The chemical symbol for Silver is Ag. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Chemically, indium is similar to gallium and thallium. © 2019 periodic-table.org / see also Its physical and chemical properties are most similar to its heavier homologues strontium and barium. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. Mass was no longer considered unchangeable in the closed system. Since nucleons (protons and neutrons) make up most of the mass of ordinary atoms, the density of normal matter tends to be limited by how closely we can pack these nucleons and depends on the internal atomic structure of a substance. Francium is a highly radioactive metal that decays into astatine, radium, and radon. The chemical symbol for Oxygen is O. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. The ratio of magnesium to iron in an igneous rock, which is related to the chemical composition of the mantle material. Atomic nuclei consist of protons and neutrons, which attract each other through the nuclear force, while protons repel each other via the electric force due to their positive charge. The chemical symbol for Antimony is Sb. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Each nuclide is denoted by chemical symbol of the element (this specifies Z) with tha atomic mass number as supescript. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Lead is widely used as a gamma shield. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. All of its isotopes are radioactive. 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. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. Titanium is a lustrous transition metal with a silver color, low density, and high strength. It is the heaviest essential mineral nutrient. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. The chemical symbol for Scandium is Sc. The chemical symbol for Argon is Ar. Iron is a metal in the first transition series. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. 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. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Uranium has the highest atomic weight of the primordially occurring elements. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Boron is a chemical element with atomic number 5 which means there are 5 protons and 5 electrons in the atomic structure. The chemical symbol for Mercury is Hg. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Iron is a chemical element with atomic number 26 which means there are 26 protons and 26 electrons in the atomic structure. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. The chemical symbol for Platinum is Pt. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 electrons in the atomic structure.

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