Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. Anyone can be able to come here, learn the basics of materials science, material properties and to compare these properties. 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. The chemical symbol for Radium is Ra. The Van der Waals radius, rw, of an atom is the radius of an imaginary hard sphere representing the distance of closest approach for another atom. Platinum is a metallic element with the atomic number 78 and the symbol Pt. Its properties are thus intermediate between those of chlorine and iodine. Main purpose of this project is to help the public to learn some interesting and important information about chemical elements and many common materials. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. Krypton is a member of group 18 (noble gases) elements. Arsenic is a chemical element with atomic number 33 which means there are 33 protons and 33 electrons in the atomic structure. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. We use cookies to ensure that we give you the best experience on our website. The chemical symbol for Aluminum is Al. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. See also: Atomic Mass Number – Does it conserve in a nuclear reaction? The chemical symbol for Platinum is Pt.. Atomic Mass of Platinum. The chemical symbol for Lanthanum is La. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. The Standard English unit is pounds mass per cubic foot (lbm/ft3). Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Increasing the pressure on an material (especially for liquids or gases) decreases the volume of the object and thus increases its density via the atomic number density. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. 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. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. For uranium atom, the Van der Waals radius is about 186 pm = 1.86 ×10−10m. The chemical symbol for Oxygen is O. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). For other isotopes, the isotopic mass usually differs and is usually within 0.1 u of the mass number. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure. The chemical symbol for Hafnium is Hf. Therefore the space in an atom (between electrons and an atomic nucleus) is not empty, but it is filled by a probability density function of electrons (usually known as  “electron cloud“). Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. Thorium is moderately hard, malleable, and has a high melting point. We can determine the neutron number of certain isotope. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. They can also be used for Platinum advertisement and marketing. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. The chemical symbol for Calcium is Ca. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. 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. It is a noble metal and a member of the platinum group. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. Period Number: 6. The chemical symbol for Platinum is Pt. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Platinum is a chemical element with symbol Pt and atomic number 78. Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 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. Platinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. The density of Hassium results from its high atomic weight and from the significant decrease in ionic radii of the elements in the lanthanide series, known as lanthanide and actinide contraction. 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 word Platinum is derived from Platina (Spanish word meaning ‘little silver’), because of its grey-white silvery colour. The most com… Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth. The difference is a measure of the nuclear binding energy which holds the nucleus together. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. Number of Neutrons: 117. Various ores, including copper and nickel deposits contain platinum in combination with sulfide, arsenide and antimonides. Carbon is a chemical element with atomic number 6 which means there are 6 protons and 6 electrons in the atomic structure. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. The chemical symbol for Praseodymium is Pr. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Number of Protons. Most materials expand when their temperatures increase. 2) You may not distribute or commercially exploit the content, especially on another website. This variation is typically small for solids and liquids but much greater for gases. Platinum is a transition metal element. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant. Although neodymium is classed as a rare earth, it is a fairly common element. Mercury is a heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. Caesium has physical and chemical properties similar to those of rubidium and potassium. Platinum atoms have 78 electrons and the shell structure is 2.8.18.32.17.1. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. Platinum. Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. We realize that the basics in the materials science can help people to understand many common problems. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Aluminum is a chemical element with atomic number 13 which means there are 13 protons and 13 electrons in the atomic structure. It is the fourth most common element in the Earth’s crust. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. The chemical symbol for Einsteinium is Es. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. Magnesium is a chemical element with atomic number 12 which means there are 12 protons and 12 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. For 12C the atomic mass is exactly 12u, since the atomic mass unit is defined from it. 113Cd has specific absorption cross-section. Hassium is a chemical element with symbol Hs and atomic number 108. Properties . Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth. Atomic Number of Platinum. Atomic number (number of protons in the nucleus): 78; Atomic symbol (on the periodic table of elements): Pt; Atomic weight (average mass of the atom): 195.1 Melting Point: 1772.0 °C (2045.15 K, 3221.6 °F) Boiling Point: 3827.0 °C (4100.15 K, 6920.6 °F) Number of Protons/Electrons: 78. On the periodic table of elements, it is found in Group 10 and in Period 6 between iridium and gold. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earths. Tellurium is far more common in the universe as a whole than on Earth. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). 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. Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. One atomic mass unit is equal to 1.66 x 10-24 grams. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Nuclides that have the same neutron number but a different proton number are called isotones. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. 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). Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. Platinum is rightly labeled as a ‘noble metal’. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. On the atomic scale, physicists have found that quantum mechanics describes things very well on that scale. 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). Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. Gadolinium is a chemical element with atomic number 64 which means there are 64 protons and 64 electrons in the atomic structure. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. Know everything about Platinum Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Our platinum page has over 260 facts that span 87 different quantities. is a rare earth element with a metallic silver luster. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. The chemical symbol for Astatine is At. Advanced Search | Structure Search. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Atomic Number: 78. Group Number: 10. Discoverer: Davy, Sir H. and Thénard, L.-J. The chemical symbol for Platinum is Pt. Europium is one of the least abundant elements in the universe. It is referred to as a “transition metal.” It is also one of the “platinum metals,” along with … The chemical symbol for Radon is Rn. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Common Chemical Compounds of Platinum. Atomic Number of Platinum is 78. Group Name: none. 78. The chemical symbol for Osmium is Os. Information on three additional radioisotopes is available (191, 193, 197). 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. Particle locations in quantum mechanics are not at an exact position, they are described by a probability density function. The chemical symbol for Tin is Sn. There are also 34 known synthetic radioisotopes, the longest-lived of which is 193 Pt with a half-life of 50 years. Platinum's Name in Other Languages; Atomic Structure of Platinum; Chemical Properties of Platinum; Physical Properties of Platinum; Regulatory / Health; Who/When/Where/How. 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. The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. If we include man made elements, the densest so far is Hassium. Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. The chemical symbol for Lithium is Li. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Pure germanium is a semiconductor with an appearance similar to elemental silicon. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. If we include man made elements, the densest so far is Hassium. Hassium is a chemical element with symbol Hs and atomic number 108. The chemical symbol for Nobelium is No. It is present in a concentration of as low as around 0.005 ppm (5micrograms per kg) in the Earth’s crust. 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. Atomic Mass Number – Does it conserve in a nuclear reaction? The number of electrons in each of platinum's shells is [2, 8, 18, 32, 17, 1] and its electron configuration is [Xe] 4f 14 5d 9 6s 1. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Platinum definition, a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia to nitric acid, and in jewelry. Element Platinum (Pt), Group 10, Atomic Number 78, d-block, Mass 195.084. It is occasionally found in native form as elemental crystals. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. Platinum is member of platinum group of element along with iridium, rhodium, osmium, Palladium and ruthenium. One atomic mass unit is equal to 1.66 x 10-24 grams. The platinum melting point is 1768.3° C, and the Boiling point is 3825 ° C. It is solid at room temperature. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. The densest material found on earth is the metal osmium, but its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. (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. In the Periodic table of elements it is a d-block metal and it belong to the 10 th group and 6 … Platinum is mostly present in its native form and as alloy with iron. Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 electrons in the atomic structure. The chemical symbol for Palladium is Pd. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Units of measure have been defined for mass and energy on the atomic scale to make measurements more convenient to express. 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 chemical symbol for Iron is Fe. 78 Pt Platinum 195.084. 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. Nickel belongs to the transition metals and is hard and ductile. Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbørn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer, Copyright 2020 Periodic Table | All Rights Reserved |. Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities. The chemical symbol for Fermium is Fm. The first recorded reference to platinum was in 1557 when Julius Scaliger, an Italian physician, described a metal found in Central America that wouldn't melt and called it \"platina,\" meaning \"little silver.\" In 1741, British scientist Charles Wood published a study introducing platinum as a new metal and desc… Like all elements with atomic number over 100, lawrencium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Pt. The classical description cannot be used to describe things on the atomic scale. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. The chemical symbol for Tantalum is Ta. The chemical symbol for Lawrencium is Lr. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. It is a synthetic element (first synthesised at Hasse in Germany) and radioactive. 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. Gold is a transition metal and a group 11 element. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. The Cookies Statement is part of our Privacy Policy. This effect is caused by a decrease in the atomic number density.

platinum atomic number

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