A) 1
B) 2
C) 3
D) 4
Correct Answer: A
Solution :
The element having atomic number 9 is fluorine. Its electronic configuration is as \[F(9):1{{s}^{2}},2{{s}^{2}}2{{p}^{5}}\] Hence, its valence is one.You need to login to perform this action.
You will be redirected in
3 sec