Chemistry, 25.07.2019 12:30, mariahrpoulin1511

Helium has two naturally occurring isotopes, helium-3 and helium-4. the atomic mass of helium is 4.003 amu. which isotope is more abundant in nature? explain your answer.

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Helium has two naturally occurring isotopes, helium-3 and helium-4. the atomic mass of helium is 4.0...