Chemistry, 03.10.2019 03:30 stefancvorovic1
Aneutral atom has 2 electrons in the first energy level and 3 electrons in the second energy level. which atom is this?
helium
boron
beryllium
carbon
Answers: 3
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Aneutral atom has 2 electrons in the first energy level and 3 electrons in the second energy level....
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