A) N and O
B) Na and Mg
C) Mg and Al
D) Be and B
Correct Answer: B
Solution :
[b]: Na and Mg is not an exception. The first ionization enthalpy of elements of group 2 are greater than those of group 1 due to their smaller size and higher nuclear charge.You need to login to perform this action.
You will be redirected in
3 sec