Question

The partial electron configuration of an atom with 11 electrons is shown.

1s²2s²2p6x

Which of the following does X represent?
A. 3s¹
B. 2d¹
C. 3p¹
D. 4s¹

Answer 1

This would be 3S^1.

Step-by-step explanation:

It would be 3s^1 because that is how the orbitals are formed.

It would be form lowest to highest: s,p,d,f.

Then it would go to highest, 2 =s, 6=p, d =10, f= 14.

So, it would be: 1s2, 2s2, 2p6, 3s2.

Since 3s2 isn't on here, then 3s1 would become the answer.