Lead is soft and malleable, and has a relatively low melting point. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. They are also poisonous to humans in many cases. It is a red-brown liquid at ordinary temperature and is very volatile. The chemical symbol for Neptunium is Np. The Diatomic Bromine (Br2) is a molecule formed when two bromine atoms combine together. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. 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. Bromine is used as an emulsifier in various citrus-flavored soft drinks. The most important health problems that can be caused by organic bromine-containing contaminants are nervous system malfunctions and genetic material abnormalities. The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. 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. Francium is an alkali metal, that has one valence electron. Bromine is the only nonmetallic element that exists as a liquid at ordinary temperatures. Pure germanium is a semiconductor with an appearance similar to elemental silicon. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Bromine has various physical properties. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. The information contained in this website is for general information purposes only. The chemical equation is given below. The chemical symbol for Silver is Ag. Some of the chemical reactions of Bromine will be as. The chemical symbol for Palladium is Pd. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. Pure radium is silvery-white alkaline earth metal. Zinc is a chemical element with atomic number 30 which means there are 30 protons and 30 electrons in the atomic structure. The chemical symbol for Samarium is Sm. When the halogen elements are found to be diatomic, that is so as they form a covalent bond, they fill their valence electron shell (8 electrons), and the atom with a closed valence electron shell appears to be chemically inert (more stable). © 2019 periodic-table.org / see also Physical Properties of Br 2. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. It is heavy and nonmetallic. The chemical symbol for Radon is Rn. 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. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. Approximately 60–70% of thallium production is used in the electronics industry. Bromine reacts with sodium carbonate to form sodium bromide, carbon dioxide, and sodium bromate. The chemical symbol for Gadolinium is Gd. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. Bromine(Br2)->-7.2 °C So, Hydrogen has the least melting point in these molecules. Bromine is highly corrosive to human tissue in a liquid state, and the vapors irritate the eyes and throat. The chemical symbol for Barium is Ba. Note that, these points are associated with the standard atmospheric pressure. The chemical symbol for Cerium is Ce. It has happened in the past that organic bromines have ended up in cattle food. It has a red-brown color and is a dense liquid having a melting point and boiling point of -7° Celsius and 58.9° Celsius, respectively. The chemical symbol for Berkelium is Bk. The chemical symbol for Curium is Cm. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. Organic bromines, however, can also cause damage to organs such as the liver, kidneys, lungs, and can cause stomach and gastrointestinal malfunctions. Only about 5×10−8% of all matter in the universe is europium. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. The melting point is the temperature at which the disruptive vibrations of the particles of the solid overcome the attractive forces operating within the solid. Bromine was discovered by a French chemist - Antoine J.Balard, in 1826. 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. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. Hafnium’s large neutron capture cross-section makes it a good material for neutron absorption in control rods in nuclear power plants, but at the same time requires that it be removed from the neutron-transparent corrosion-resistant zirconium alloys used in nuclear reactors. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Niobium is a soft, grey, ductile transition metal, often found in the minerals pyrochlore (the main commercial source for niobium) and columbite. The chemical symbol for Aluminum is Al. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Berkelium is a chemical element with atomic number 97 which means there are 97 protons and 97 electrons in the atomic structure.