Question

answering this question gives you 80 points​

Answer 1

Answer:

The configuration of Cr is 1s2,2s2,2p6,3s2,3p6,4s2,3d4.

l=1 corresponds to p subshell. in the p subshell, there are 12 electrons. 2p6+3p6. 

Similarly for l=2, there are 4 electrons. 3d4.

So, option B is correct.

Answer 2

Explanation:

Your answer is 12 and 5 as per your question asked.