A) Aluminium
B) Chromium
C) Carbon
D) Potassium
Correct Answer: D
Solution :
The electronic configuration of potassium is as \[K(19)=1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}},3{{p}^{6}},4{{s}^{1}}\] The last electron of potassium enters in the s-subshell hence it is s-block element.
You need to login to perform this action.
You will be redirected in
3 sec
