Help me please someone?

Chemistry

1 answer:

ElenaW [278]3 years ago

3 0

It could both the 2nd and the 3rd,
because if you add the exponents (2 + 1 + 6 = 9) you don't get 10.
and also each orbital level can and has to carry 2 electrons, and the 2s only has 1 there.

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