Classification Of Elements And Periodicity In Properties Ques 166
Question: $ 1s^{2}2s^{2}2p^{6}3s^{2} $ is the electronic configuration of the metal [RPET 2000]
Options:
A) $ Na $
B) $ Mg $
C) $ Fe $
D) $ Al $
Show Answer
Answer:
Correct Answer: B
Solution:
On equating no. of $ {{e}^{-}} $ ’s atomic no. is 12 which is for $ Mg $ .
