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What is radium's atomic mass,and atomic number and other details. add alot of detail please. if added extra detail you will be marked as Brainliest |
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Answer» m atomic mass☆Radium is a chemical element with the symbol Ra and atomic number 88. It is the SIXTH element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) on EXPOSURE to air, forming a black surface layer of radium nitride (Ra3N2). All ISOTOPES of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1600 years and decays into radon gas (specifically the isotope radon-222). When radium decays, ionizing radiation is a PRODUCT, which can excite fluorescent chemicals and cause radioluminescence. ☆Atomic Number ☆The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present). |
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