Friends, can anyone tell me the atomic mass of helium??
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The atomic mass of helium is "4".
prerna16:
okhay
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Atomic mass of an element is no. of protons+no. of neutrons. So, no. of protons in helium is 2, and no. of neutrons in helium is 2, again. Hence, atomic mass of helium is approximately (because few more things are there to be added) is 4
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