Atomic Structure Question 350
Question: How many unpaired electrons are present in cobalt [Co] metal [RPMT 2002]
Options:
A) 2
B) 3
C) 4
D) 7
Show Answer
Answer:
Correct Answer: B
Solution:
$ Co_{27}=[Ar]3d^{7}4s^{2} $ 3 unpaired electron are present in cobalt metal.