Which of the following could be the subshell representation of an element of group iv? s2 s2pl s2p3 s2p2

for example, carbon has a configuration of 1s2 2s2 2p2  

so we take the latter two thirds of the configuration as that of the subshell - s2 p2

The correct answer is

Explanation:

The number of valence electrons that the elements belonging to Group IV contains are 4.

The electronic configuration for the elements belonging to group IV will be :

where, n is the number of period to which the element belongs.

Hence, the correct answer is

the answer is 0.42 is that is an option. this question provides no info