Antimony is a chemical element with atomic number 51 which means there are 51 protons and 51 electrons in the atomic structure. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Lead is a heavy metal that is denser than most common materials. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. Nickel is a silvery-white lustrous metal with a slight golden tinge. Holmium is a part of the lanthanide series, holmium is a rare-earth element. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. So it is -8. This fact has key implications for the building up of the periodic table of elements. The chemical symbol for Helium is He. 2) You may not distribute or commercially exploit the content, especially on another website. The oxidation number of the sulfur atom in the SO42- ion must So, Na oxidation number is +1. Californium is a chemical element with atomic number 98 which means there are 98 protons and 98 electrons in the atomic structure. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. The chemical symbol for Magnesium is Mg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. 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. The sum of oxidation numbers of all atoms is zero. ZnBr2) in which the nonmetal has a -1 oxidation number. So Na number becomes +6. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table. Using the periodic table of elements you can find the oxidation number of NaHCO3. 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. The chemical symbol for Praseodymium is Pr. Bromine is a chemical element with atomic number 35 which means there are 35 protons and 35 electrons in the atomic structure. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. The configuration of these electrons follows from the principles of quantum mechanics. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. The chemical symbol for Ruthenium is Ru. 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. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. The chemical symbol for Tantalum is Ta. Our Website follows all legal requirements to protect your privacy. Click here to The chemical symbol for Boron is B. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. For simple ions, the oxidation number is equal to the ionic charge, e.g. Applying the oxidation number rules to the following equation, we have. Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. Only about 5×10−8% of all matter in the universe is europium. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. The chemical symbol for Aluminum is Al. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. The chemical symbol for Selenium is Se. 4. Electron configuration of Sodium is [Ne] 3s1. Zirconium is widely used as a cladding for nuclear reactor fuels. The chemical symbol for Argon is Ar. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 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. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Thorium is a naturally-occurring element and it is estimated to be about three times more abundant than uranium. polyatomic ions that contain O-O bonds, such as O2, O3, H2O2, Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. In 1807 Sir Humphry Davy became the first to prepare sodium in its elemental form, applying electrolysis to fused sodium hydroxide (NaOH). LiH, NaH, CaH2, and LiAlH4. The chemical symbol for Rhenium is Re. So the 4 O atoms combined makes -8 and the trio of Na atoms takes +3 off that. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. The chemical symbol for Bismuth is Bi. Its boiling point is the lowest among all the elements. The chemical symbol for Neon is Ne. The chemical symbol for Beryllium is Be. The chemical symbol for Californium is Cf. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Mercury is a heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. For example, in … The oxidation number of hydrogen is +1 when it is combined with a nonmetal as Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure.