As atomic Number is number of protons Or number of electrons so 
N has 7 electrons
Neutrons= Mass no.- Atomic Number 
 = 14-7
N has 7 neutrons 
N doesn’t have 7 electron shells because shell 1 can hold 2 electrons and shell 2 can hold 8 electrons 
It doesn’t have 23 neutrons and 14 electrons 
So, Seven Electrons and seven neutrons is correct