What is complete electron configuration for an atom of cobalt?

Answer 1

The electronic configuration of cobalt is :1s2 2s2 2p6 3s2 3p6 3d7 4s2

This is so because cobalt has an atomic no of 27. So it will have 27 electrons. The 1st shell can accommodate a maximum of 2 electrons, the 2nd shell can accomodate 8. So that makes it 10, 17 to go.

Now the 3s and 3p subshells get filled up with 2 and 6 electrons respectively, but after that instead of the 3d subshell, the 4s subshell gets filled up.(This is so because the 4s subshell has a lower energy level than 3d).So that makes it 20 electrons. The remaining 7 proceed into the 3d subshell to make a total of 27.

Answer 2

The complete electron configuration for cobalt (Co) is 1s2 2s2 2p6 3s2 3p6 3d7 4s2. This corresponds to a total of 27 electrons in the atom of cobalt.

Answer 3

The element cobalt has atomic number 27 and the electron configuration

[Ar]3d74s2

Answer 4

Z (atomic number) = 27 Cobalt Co

1s2 2s2 2p6 3s2 3p6 4s2 3d7 or

[Ar] 4s2 3d7

Answer 5

Electron configuration of cobalt: [Ar] 4s2 3d7.

Answer 6

[Ar] 4s2, 3d7

Answer 7

[Ar]4s^2,3d^7

Answer 8

1s2 2s2 2p6 3s2 3p6 4s2 3d7

Answer 9

[Ar]3d74s2

Answer 10

[Ar]3d^7