Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. Neodymium is a soft silvery metal that tarnishes in air. The chemical symbol for Platinum is Pt. Home. The chemical symbol for Mercury is Hg. Thorium metal is silvery and tarnishes black when exposed to air, forming the dioxide. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. It is occasionally found in native form as elemental crystals. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. The chemical symbol for Astatine is At. Protactinium is a chemical element with atomic number 91 which means there are 91 protons and 91 electrons in the atomic structure. Gadolinium is the only lanthanide that is ferromagnetic near room temperature; its Curie point (ferromagnetic ordering) is 293 K (20 °C, or 68 °F). Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. Neptunium metal is silvery and tarnishes when exposed to air. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. The chemical symbol for Lanthanum is La. Nickel is a silvery-white lustrous metal with a slight golden tinge. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. and Gay-Lussac, L.-J. 1) You may use almost everything for non-commercial and educational use. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Its atomic weight is 157.25. The chemical symbol for Nobelium is No. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. 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 properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. Lawrencium is the final member of the actinide series. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. The chemical symbol for Zinc is Zn. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. The boiling point of a substance is the temperature at which this phase change (boiling or vaporization) occurs. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Period Number: 6. It is the fourth most common element in the Earth’s crust. The chemical symbol for Lead is Pb. It is a soft, silvery-white alkali metal. Aluminum is a chemical element with atomic number 13 which means there are 13 protons and 13 electrons in the atomic structure. 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. The chemical symbol for Titanium is Ti. In fact their absorption cross-sections are the highest among all stable isotopes. It is found in rare minerals like monazite and bastnäsite; It is relatively stable in dry air unlike the other rare earth elements. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Tellurium is far more common in the universe as a whole than on Earth. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Europium is one of the least abundant elements in the universe. It is a noble metal and a member of the platinum group. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Cerium is the second element in the lanthanide series. The chemical symbol for Europium is Eu. www.nuclear-power.net. Only about 5×10−8% of all matter in the universe is europium. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. 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. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Gadolinium is one of 15 metallic chemical elements known as the Lanthanide Series. 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 Vanadium is V. Vanadium is a hard, silvery grey, ductile, and malleable transition metal. Energy of second ionisation. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. In thermodynamics, the term saturation defines a condition in which a mixture of vapor and liquid can exist together at a given temperature and pressure. Actinium is a soft, silvery-white radioactive metal. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. Berkelium is a member of the actinide and transuranium element series. As can be seen, the boiling point of a liquid varies depending upon the surrounding environmental pressure. Because of its high chemical reactivity, barium is never found in nature as a free element. The chemical symbol for Krypton is Kr. In thermodynamics, the melting point defines a condition in which the solid and liquid can exist in equilibrium. Melting point: 770 °C (1,420 °F; 1,040 K) Boiling point: 1,455 °C (2,651 °F; 1,728 K) The chemical symbol for Thorium is Th. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. Gadolinium is paramagnetic in nature at the room temperature and is ferromagnetic when cooled or at low temperatures of about 20 o c. The Curie point of the metal gadolinium is about 17 o c. Gadolinium has around 27 synthetic isotopes and about 13 number of naturally occurring isotopes. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Ductile means capable of being made into wires. When considered as the temperature of the reverse change from liquid to solid, it is referred to as the freezing point or crystallization point. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. The Cookies Statement is part of our Privacy Policy. 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. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 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. 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. The chemical symbol for Potassium is K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. The chemical symbol for Promethium is Pm. The chemical symbol for Tungsten is W. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. Hafnium is a lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). It is found in nature only in an oxidiz… Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. 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 Molybdenum is Mo. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Malleable means capable of being hammered or rolled into thin sheets. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Iron is a metal in the first transition series. Francium is an alkali metal, that has one valence electron. 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. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. Lead is widely used as a gamma shield. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. The chemical symbol for Polonium is Po. The chemical symbol for Bismuth is Bi. The temperature at which vaporization (boiling) starts to occur for a given pressure is also known as the saturation temperature and at this conditions a mixture of vapor and liquid can exist together. When considered as the temperature of the reverse change from vapor to liquid, it is referred to as the condensation point. It is both ductile and malleable. At room temperature, gadolinium crystallizes in the hexagonal, close-packed alpha form. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Adding a heat will convert the solid into a liquid with no temperature change. Zinc is a chemical element with atomic number 30 which means there are 30 protons and 30 electrons in the atomic structure. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. Boisbaudran suggested the name gadolinium for the new element after the 18th century chemist and mineralogist J… It has a melting point of 1,312°C (2,394°F) and a boiling point of about 3,000°C (5,400°F). Synonym: Hydrogen[8,11,14-tris(carboxymethyl)-6-oxo-2-oxa-5,8,11,14-tetraazahexadecan-16-oato(4-)]gadolinium Empirical Formula (Hill Notation): C 17 H 27 N 4 O 10 Gd Molecular Weight: 604.67 Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. It is only slightly malleable and is a ductile rare-earth element. Major advantage of lead shield is in its compactness due to its higher density. The chemical symbol for Fermium is Fm. 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