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. The atomic mass is the mass of an atom. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Melting Point: 2041.55 K (1768.4°C or 3215.1°F) Boiling Point: 4098 K (3825°C or 6917°F) Density: 21.46 grams per cubic centimeter. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. Platinum has a melting point of 1772 degrees C, the boiling point of 3827 +/- 100 degrees C, the specific gravity of 21.45 (20 degrees C), with a valence of 1, 2, 3, or 4. Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. The chemical symbol for Niobium is Nb. Holmium is a relatively soft and malleable silvery-white metal. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. The chemical symbol for Thorium is Th. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Since the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance, it is obvious, the density of a substance strongly depends on its atomic mass and also on the atomic number density (N; atoms/cm3). Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Platinum (Pt), chemical element, the best known and most widely used of the six platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table. Zirconium is widely used as a cladding for nuclear reactor fuels. Since the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance, it is obvious, the density of a substance strongly depends on its atomic mass and also on the atomic number density (N; atoms/cm3). The standard SI unit is kilograms per cubic meter (kg/m3). It is a synthetic element (first synthesised at Hasse in Germany) and radioactive. The name samarium is after the mineral samarskite from which it was isolated. 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. The platinum melting point is 1768.3° C, and the Boiling point is 3825 ° C. It is solid at room temperature. Platinum is a chemical element with symbol Pt and atomic number 78. The atomic mass is carried by the atomic nucleus, which occupies only about 10-12 of the total volume of the atom or less, but it contains all the positive charge and at least 99.95% of the total mass of the atom. It has the symbol Pt. History. Rhenium is a chemical element with atomic number 75 which means there are 75 protons and 75 electrons in the atomic structure. Tellurium is chemically related to selenium and sulfur. 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. The chemical symbol for Mendelevium is Md. Neodymium is a soft silvery metal that tarnishes in air. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. The chemical symbol for Zinc is Zn. Platinum occurs natively, accompanied by small quantities of iridium, osmium, palladium, ruthenium, and rhodium, all belonging to the same group of metals.These are found in the alluvial deposits of the Ural mountains, of Columbia, and of certain western American states. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. Properties . Thulium is an easily workable metal with a bright silvery-gray luster. 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. Naturally occurring platinum (78 Pt) consists of five stable isotopes (192 Pt, 194 Pt, 195 Pt, 196 Pt, 198 Pt) and one very long-lived (half-life 6.50×10 11 years) radioisotope (190 Pt). The chemical symbol for Thulium is Tm. All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge – a cation, which combines with anions to form salts. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Pt. Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. These electrons together weigh only a fraction (let say 0.05%) of entire atom. Atomic Mass of Platinum Atomic mass of Platinum is 195.078 u. On the periodic table of the elements, atomic radius tends to increase when moving down columns, but decrease when moving across rows (left to right). Elemental sulfur is a bright yellow crystalline solid at room temperature. Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. Group Number: 10. 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. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Atomic Number. Technetium is the lightest element whose isotopes are all radioactive; none are stable. In words, the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance. Nickel belongs to the transition metals and is hard and ductile. Its extreme rarity in the Earth’s crust, comparable to that of platinum. Platinum is mostly present in its native form and as alloy with iron. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. It is the heaviest essential mineral nutrient. See also: Atomic Mass Number – Does it conserve in a nuclear reaction? It is present in a concentration of as low as around 0.005 ppm (5micrograms per kg) in the Earth’s crust. Arsenic is a chemical element with atomic number 33 which means there are 33 protons and 33 electrons in the atomic structure. The chemical symbol for Silicon is Si. Atomic Weight: 195.084. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. The chemical symbol for Barium is Ba. al. By mass, aluminium makes up about 8% of the Earth’s crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. The density and atomic radius of platinum are respectively. According to the Einstein relationship (E=mc2), this binding energy is proportional to this mass difference and it is known as the mass defect. The chemical symbol for Germanium is Ge. Melting point of Platinum is 1772 °C and its the boiling point is 3827 °C. Radon is a radioactive, colorless, odorless, tasteless noble gas. The chemical symbol for Tin is Sn. The chemical symbol for Gold is Au. Melting Point: 2041.55 K (1768.4°C or 3215.1°F) Boiling Point: 4098 K (3825°C or 6917°F) Density: 21.46 grams per cubic centimeter. Element Classification: Metal. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. Group Name: none. Platinum is a chemical element with the symbol Pt and atomic number 78. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. The chemical symbol for Erbium is Er. It is the least reactive precious metal and is known for its resistance to corrosion and tarnishing. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Number of Protons. Search term: "platinum atomic number" Compare Products: Select up to 4 products. The chemical symbol for Sodium is Na. The chemical symbol for Samarium is Sm. The chemical symbol for Actinium is Ac. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. Copper is a chemical element with atomic number 29 which means there are 29 protons and 29 electrons in the atomic structure. The Standard English unit is pounds mass per cubic foot (lbm/ft3). A very hard, brittle, silvery-white transition metal of the platinum group, iridium is considered to be the second-densest metal (after osmium) with a density of 22.56 g/cm 3 as defined by experimental X-ray crystallography. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. The chemical symbol for Americium is Am. Yttrium is a chemical element with atomic number 39 which means there are 39 protons and 39 electrons in the atomic structure. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Francium is the second-least electronegative element, behind only caesium, and is the second rarest naturally occurring element (after astatine). Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Platinum's Name in Other Languages; Atomic Structure of Platinum; Chemical Properties of Platinum; Physical Properties of Platinum; Regulatory / Health; Who/When/Where/How. Atomic weight of Platinum is 195.084 u or g/mol. Platinum is the third element of the tenth column in the periodic table. There are also 34 known synthetic radioisotopes, the longest-lived of which is 193 Pt with a half-life of 50 years. The ground state electronic configuration of neutral platinum is [Xe].4f 14.5d 9.6s 1 and the term symbol of platinum is 3 D 3.. It is an intensive property, which is mathematically defined as mass divided by volume: In words, the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. Most materials expand when their temperatures increase. Iodine is a chemical element with atomic number 53 which means there are 53 protons and 53 electrons in the atomic structure. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. Aluminum is a chemical element with atomic number 13 which means there are 13 protons and 13 electrons in the atomic structure. The chemical symbol for Zirconium is Zr. The ordering of the electrons in the ground state of multielectron atoms, starts with the lowest energy state (ground state) and moves progressively from there up the energy scale until each of the atom’s electrons has been assigned a unique set of quantum numbers. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. Sodium is a soft, silvery-white, highly reactive metal. It has an estimated density of 40.7 x 103 kg/m3. Because of its high chemical reactivity, barium is never found in nature as a free element.