1
26
Exactly 16
Exactly 18 of them
how 2s go into 324?
96 ÷ 2 = 48
214 ÷ 2 = 107
thirty 60 / 2 = 30
Two will go into forty two twenty one times.
Exactly 18 of them do, with nothing hanging out and no room to spare.
(2*2)! * 2/2 = 4! * 1 = 24 * 1 = 24
There is only one 2s orbital in an atom.