Answer :
Explanation :

The electron configuration for Cobalt at ground state would simply be Co: [Ar] 4s23d7. The s,p,d,f configuration for cobalt (Co) is 1s22s22p63s23p64s23d7 , determined by the position of the element on the periodic table. Cobalt is an inner transition metal which means the electron configuration will end in d block. Cobalt is in the 7th column of the d block and therefore has 7 d electrons d7.