Question

what is the number of molecules of healium
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Answer 1

Answer:

There are no molecules at all, helium is a monatomic gas there are only atoms of helium. So in 4 grams of helium there are Avogadro's constant of atoms of helium, 4 is the atomic mass of helium.

Answer 2

Answer:

there are no atoms in helium

Explanation:

after all helium is a atom itself .....

it only contains protons ,electrons, neutrons...

hope it help you