The atomic mass is carried by the atomic nucleus, which occupies only about 10-12 of the total volume of the atom or less, but it contains all the positive charge and at least 99.95% of the total mass of the atom. The chemical symbol for Molybdenum is Mo. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. Titanium is a lustrous transition metal with a silver color, low density, and high strength. If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252.

The ramifications of relativistic effects on the energies of the bonding electrons has generated much excitement for us synthetic chemists, but unfortunately many headaches for experimental and computational chemists who are trying to understand how better to deal with our nuclear waste legacy. An archaeological dig near Naples in 1912 unearthed a small green mosaic tile dated back to 79 AD, which was reported to contain uranium, but these claims have not been verified. Note that, electrical resistivity is not the same as electrical resistance. Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 electrons in the atomic structure. Samples of the metal tarnish rapidly in air, but if the metal is finely divided, it will burst into flames. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Find the latest STANDARD URANIUM LTD (STND.V) stock quote, history, news and other vital information to help you with your stock trading and investing.

Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. Thulium is an easily workable metal with a bright silvery-gray luster. The chemical symbol for Rhenium is Re. 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. It’s Elemental - The Periodic Table of Elements. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Currency in CAD, Man Who Predicted Rise of AMZN Has New Prediction.