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Biology, 06.01.2020 05:31 asialuv

Helium has an atomic number of 2 so it's outer energy level is full. hellium is considered
a)nuetral
b)inert
c)an anion
d)a cation

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Helium has an atomic number of 2 so it's outer energy level is full. hellium is considered
a)nu...
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