Question

Please answer ASAP! Will mark brainliest:
According to its periodic table entry, how many electrons does nickel have in its valence level?
a.) 2
b.) 8
c.) 16
d.) 28

Answer 1

Hello There!

The correct answer is A. 2
Valence is the outer shell.

Hope This Helps You!
Good Luck :)

Answer 2

Answer

Option A= 2

Explanation

Atomic Number of Nickel (Ni) = 28

Electronic configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d8

By definition, the highest principle quantum number is the valence shell. In the case of Nickel, n = 4 is the highest QN and contains 2 electrons (max allowed) in the s-orbital.