12.007809
ONE, Helium is an element, not a molecule.
Helium atom has 2 electrons.
Helium has only 1 shell with two electrons.
Helium has two electrons as its atomic number is 2.
Helium is helium. Storing it is difficult as it diffuses through many substances.
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Helium has one kind of atom: helium.
65 and a bunch of others
vanadiums atomic weight is 50 AMUs
Helium has 2 electrons.
Helium has 2 protons.
Helium has only one type of gas (which is helium itself)
The number of helium atoms is 6,022 140 857.10e26.
ONE, Helium is an element, not a molecule.
true
Helium is an element by itself with 2 protons