The electron configuration of nitrogen (n) is
1s22s22p3
1s22s22p4
1s22s22p5
1s22s22p6

1s22s22p3 that's the correct

The answer is Choice A)

Explanation:

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;