Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Cerium is the second element in the lanthanide series. The chemical symbol for Manganese is Mn. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. The … The chemical symbol for Osmium is Os. Nickel belongs to the transition metals and is hard and ductile. 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). Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. The chemical symbol for Holmium is Ho. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. Titanium is a lustrous transition metal with a silver color, low density, and high strength. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). It is a noble metal and a member of the platinum group. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. Like all alkali metals, lithium is highly reactive and flammable, and is stored in mineral oil. In a neutral atom there are as many electrons as protons moving about nucleus. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. 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. Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. Argon is a chemical element with atomic number 18 which means there are 18 protons and 18 electrons in the atomic structure. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. 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 Silicon is Si. The chemical symbol for Oxygen is O. Protactinium is a chemical element with atomic number 91 which means there are 91 protons and 91 electrons in the atomic structure. The chemical symbol for Cadmium is Cd. Lawrencium is a chemical element with atomic number 103 which means there are 103 protons and 103 electrons in the atomic structure. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. The chemical symbol for Zirconium is Zr. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. The chemical symbol for Mercury is Hg. The chemical symbol for Germanium is Ge. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. 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 Platinum is Pt. This fact has key implications for the building up of the periodic table of elements. Lawrencium is the final member of the actinide series. Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. The chemical symbol for Francium is Fr. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. The chemical symbol for Boron is B. The chemical symbol for Hafnium is Hf. The chemical symbol for Titanium is Ti. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Chlorine is a yellow-green gas at room temperature. The chemical symbol for Rubidium is Rb. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. 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. Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Because of its high chemical reactivity, barium is never found in nature as a free element. 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. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 electrons in the atomic structure. Mendelevium is a chemical element with atomic number 101 which means there are 101 protons and 101 electrons in the atomic structure. The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. The information contained in this website is for general information purposes only. Thulium is the thirteenth and third-last element in the lanthanide series. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. The chemical symbol for Thorium is Th. Mercury is a heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. Tellurium is chemically related to selenium and sulfur. Pure radium is silvery-white alkaline earth metal. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth’s crust and is more common than such metals as tin. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. The chemical symbol for Fermium is Fm. 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. The chemical symbol for Tantalum is Ta. Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. The chemical symbol for Lutetium is Lu. The chemical symbol for Einsteinium is Es. Tellurium is far more common in the universe as a whole than on Earth. There are over 100 different borate minerals, but the most common are: borax, kernite, ulexite etc. The chemical symbol for Arsenic is As. is a rare earth element with a metallic silver luster. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. The chemical symbol for Lithium is Li. The bulk properties of astatine are not known with any certainty.