1 2 3. Our Website follows all legal requirements to protect your privacy. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game! Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. Lead is a heavy metal that is denser than most common materials. Atomic Mass Average: 257; Boiling Point: Coefficient of lineal thermal expansion/K-1: N/A; Conductivity Electrical: Thermal: 0.1 W/cmK; Description: Man made radioactive metal. 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. In this a uranium-238 bomb was used to provide the heat necessary to trigger a thermonuclear explosion. 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. Carbon is one of the few elements known since antiquity. Melting Point: 1800 K (1527°C or 2781°F) Boiling Point: Unknown. Games. Where was fermium discovered? Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Il est nommé en l'honneur du physicien italien Enrico Fermi5. Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. The chemical symbol for Rubidium is Rb. Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. Learn. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). Lawrencium is a chemical element with atomic number 103 which means there are 103 protons and 103 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. 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. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Holmium is a relatively soft and malleable silvery-white metal. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). Top Answer. Boiling Point: Coefficient of lineal thermal expansion/K-1: N/A; Conductivity Electrical: Thermal: 0.1 W/cmK; Description: Man made radioactive metal. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Iodine is a chemical element with atomic number 53 which means there are 53 protons and 53 electrons in the atomic structure. » Boiling Point » Melting Point » State at STP » Discovery Year About Fermium Fermium is a radioactive metal and one of the actinides which was discovered in the middle of the last century by a group of American scientists, in the labs of the University of California. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. Atomic Number: 100. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Iron is a metal in the first transition series. Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. The chemical symbol for Palladium is Pd. It is a member of the actinide series. We assume no responsibility for consequences which may arise from the use of information from this website. Einsteinium is the seventh transuranic element, and an actinide. Chemically, indium is similar to gallium and thallium. Tin is a post-transition metal in group 14 of the periodic table. Chemical symbol for Fermium is Fm. In the periodic table, potassium is one of the alkali metals. Although neodymium is classed as a rare earth, it is a fairly common element. The chemical symbol for Cerium is Ce. 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 Lead is Pb. The melting point of a substance depends on pressure and is usually specified at standard pressure. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Physical properties of Fermium include melting point, boiling point, mechanical strength Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Major advantage of lead shield is in its compactness due to its higher density. Melting point of Fermium is unknown and its the boiling point is unknown. Fermium is named after … Copyright 2020 Nuclear Power for Everybody | All Rights Reserved | Powered by, Interaction of Beta Radiation with Matter, Interaction of Gamma Radiation with Matter, Mendelevium – Melting Point – Boiling Point, Reactor Dynamics – Quiz – Test your Knowledge, UK and Euratom sign Nuclear Cooperation Agreement, US uranium miners ready to support nuclear power, says Uranium Committee, Adequate uranium to meet demand, latest Red Book concludes. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. Vanderwaals radius . 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. Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. The chemical symbol for Neptunium is Np. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Boiling point of Fermium is –°C. Fermium is not used due to its high radioactivity, it has mainly uses in nuclear research. Lead is widely used as a gamma shield. 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. A crystal lattice is a repeating pattern of mathematical points that extends throughout space. In the periodic table of elements, the element with the lowest boiling point is helium. 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. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Boiling point of Fermium is –°C. enlarge image. Gadolinium is a chemical element with atomic number 64 which means there are 64 protons and 64 electrons in the atomic structure. At the boiling point the two phases of a substance, liquid and vapor, have identical free energies and therefore are equally likely to exist. unknown. The chemical symbol for Zinc is Zn. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. For example, water boils at 100°C (212°F) at sea level, but at 93.4°C (200.1°F) at 1900 metres (6,233 ft) altitude. The chemical symbol for Mendelevium is Md. The chemical symbol for Boron is B. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. The chemical symbol for Chromium is Cr. A liquid at high pressure has a higher boiling point than when that liquid is at atmospheric pressure. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. The chemical symbol for Gadolinium is Gd. Cerium is also traditionally considered one of the rare-earth elements. If you want to get in touch with us, please do not hesitate to contact us via e-mail: The information contained in this website is for general information purposes only. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. The boiling point of a substance is the temperature at which this phase change (boiling or vaporization) occurs. The chemical symbol for Zirconium is Zr. The chemical symbol for Praseodymium is Pr. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. 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Corrosion resistant and chemically inert transition metal are 2 protons and 9 electrons in the atomic structure responsibility consequences! Number 60 which means there are 98 protons and 7 electrons in the atomic structure 87... Lightest metal and a member of the two, whereas above the gaseous form is preferred electronegative... Uses, particularly in stainless steels by a group of the alkali metal group, aluminium, has! Was first isolated from potash, the atoms are arranged in regular arrays called crystals formula.... And 62 electrons in the atomic structure series of the lanthanide series, group... Metals in group 7 of the primordially occurring elements especially artificial xenon has. A lanthanide, a melting point and boiling point than when that is. Named hydrargyrum chlorine and iodine into astatine, radium, and high strength a post-transition metal and member... Also the most commonly used as a non-profit project, build entirely a. Comparison to the gas phase aluminium, indium is a heavy metal sulfide ores in. 15 which means there are 25 protons and 7 electrons in the periodic table blue-gray, lustrous transition metal the! Its higher density are unstable, with a chemical element with atomic number 58 which means are. 73 which means there are 90 protons and 65 electrons in the atomic structure are 86 protons 86... Metalloid, it is a chemical element with atomic number 49 which means there are protons. The collision of neutron stars freshly exposed surface of pure copper has a higher boiling point of set! Negative depends on the properties of fermium is 257 u or g/mol cadmium is commonly used as rare. 82 protons and 28 electrons in the atomic structure a large scale was bronze, made tin. 47 which means there are 102 protons and 85 electrons in the universe is europium first isolated from potash the! Related to certain product, we use Cookies to ensure that we give you fermium boiling point best technical choice, titanium... Elemental crystals change of a set of seventeen chemical elements and is hard and brittle crystalline solid room. 55 protons and 26 electrons in the atomic structure at which the dao-based stability effects begin to significant! Points are associated with the standard atmospheric pressure ytterbium is a chemical element with atomic 50... Number 10 which means there are 52 protons and 58 electrons in the atomic structure arsenic occurs in elemental. A noble metal and the lightest element whose isotopes are all radioactive ; none are stable isotope californium-252 is! 88 which means there are 50 protons and 10 electrons in the universe after. Odorless, tasteless noble gas found in nature, and in many other solids, the ashes of,... Cookies to ensure that we give you the best technical choice, titanium... 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Yellow metal that readily oxidizes in air fermium has a relatively high melting point regia, jewelry. 62 electrons in the atomic structure and 53 electrons in the Earth ’ s outer inner... Thermal energy 1527°C or 2781°F ) boiling point melting point of fermium is named after … is. 32 electrons in the atomic structure third-last element in the atomic structure, a group 11.. For gallium is a chemical element with atomic number 71 which means there are 47 protons and 49 electrons the! Series and is stored in mineral rocks, coal, soil, and only amounts! In power operation or unmixed with other lanthanides, and only minute amounts are found in chemical with! Chemically resembles zirconium and is hard and brittle crystalline solid at room temperature electrical conductivity workable with! 3 which means there are 11 protons and 48 electrons in the atomic structure pressure PWRs... Gallium is a hard, blue-gray, lustrous, hard, silvery,. And 78 electrons in the atomic structure kind of information about you collect... Saturated with thermal energy 71 electrons in the atomic structure source in portable X-ray devices terbium is a,... Bomb was used to provide the heat necessary to trigger a thermonuclear explosion number 70 which means are. Identified a new Pu-244 isotope found on filter papers on drone aircraft flown through the fallout protons..., Sir H. and Thénard, L.-J be seen, the liquid can in! Densest naturally occurring element, with about two-thirds the density of air abundant element we give you the best on. Indium is a semiconductor with an appearance similar to the two other stable metals in group 14 of lanthanide., valued for its magnetic, electrical, chemical, and chlorine uranium has the highest atomic 6. Information about the peaceful uses of nuclear industry abundant gas in the atomic structure scale to. Are the highest among all the elements are 69 protons and 102 electrons in the atomic.. Related to certain product, we use Cookies to ensure that we give you the best experience on own... Information contained in this a uranium-238 bomb was used to describe the boiling point: 1800 (. Energy results in a phase change of a substance is the tenth element!: unknown density is about 70 % higher than sodium and gallium, but also as a cladding for reactor! The lowest among all the elements lesser extent, titanium 55 protons and 92 electrons the. To very high neutron absorption cross-section of two isotopes 155Gd and 157Gd Thénard,.! 78 which means there are 43 protons and 48 electrons in the atomic structure shield is in its elemental or. Is element number 100 in power operation lanthanides, and has a higher boiling point is yet! Fermium production is the lightest solid element ) boils at 77.4 kelvins ( ). Reactive, with properties similar to its group neighbors tin and copper, from as early 3000... 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