what is the atomic mass of helium
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atomic mass of He is 4u
anjali305:
ya ans.. is 4u
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4.002602 ± 0.000002 u
Helium has an atomic mass of 4.00 atomic mass units. The gaseous element also has an atomic number of 2 and an atomic symbol of He. Its atomic number correlates with the number of protons and electrons the element has, while the element's neutrons can be determined from its mass.
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