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Michael L. Bender has written:
'Helium-uranium dating of corals' -- subject(s): Decay, Fossil Corals, Paleontology, Radioactive dating, Uranium
Helium Helium
Do you mean helium?
Helium is an element, so it's made of .... helium!
Helium has 2 protons, 2 neutrons and 2 electrons. The symbol for helium is He and the atomic number is 2.
helium in a jar diff from helium atom