Why are noble gases the least reactive nonmetal group?
They have 7 valence electrons.
They have 8 electrons.
They have 7 electrons.
They have 8 valence electrons.
1 answer
They have 8 valence electrons.
They have 7 valence electrons.
They have 8 electrons.
They have 7 electrons.
They have 8 valence electrons.
1 answer