Classification Of Elements And Periodicity In Properties Ques 149
Question: Which pair of atomic numbers represents $ s $ -block elements [EAMCET 1990; RPMT 1997; MP PET 2003]
Options:
A) 7, 15
B) 6, 12
C) 9, 17
D) 3, 12
Show Answer
Answer:
Correct Answer: D
Solution:
Last electron goes to s-subshell.
