The following orbital notation is for which element?

Question

a single box labeled 1s with one up arrow and one down arrow, a single box labeled 2s with one up arrow and one down arrow, a set of three boxes with a total of three up arrows, one in each

B
N
F
O

Answer 1

The given orbital notation indicates the following electron configuration:

• One 1s orbital with 2 electrons (1 up arrow and 1 down arrow)
• One 2s orbital with 2 electrons (1 up arrow and 1 down arrow)
• Three 2p orbitals, each containing 1 electron (3 up arrows)

This corresponds to a total of 2 (from 1s) + 2 (from 2s) + 3 (from 2p) = 7 electrons.

The element with atomic number 7 is Nitrogen (N).

So, the answer is N (Nitrogen).