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.
The element cobalt has atomic number 27 and the electron configuration
[Ar]3d74s2
Z (atomic number) = 27 Cobalt Co
1s2 2s2 2p6 3s2 3p6 4s2 3d7 or
[Ar] 4s2 3d7
Electron configuration of cobalt: [Ar] 4s2 3d7.
[Ar] 4s2, 3d7
[Ar]4s^2,3d^7
1s2 2s2 2p6 3s2 3p6 4s2 3d7
[Ar]3d74s2
[Ar]3d^7
4s2 3d7 if you are not supposed to add the core configuration.
The electron configuration of gallium is: [Ar]3d104s24p1.
The arrangement of the electrons in an atom is known as its electron configuration.
The ground state electron configuration of the hydrogen atom is 1s1, and for helium it is 1s2.
1s2 2s2 2p6 3s2 3p6 4s2 3d3
The electron configuration of bohrium is [Rn]5f14.6d5.7s2.
The electron configuration of gallium is: [Ar]3d104s24p1.
[Ar] 4s2 3d7
1s22s22p1
1s22s22p63s23p3
Zinc's complete electron configuration is 1s22s22p63s23p64s23d10
The full electron configuration for sulfur atom is 1s2.2s2.2p6.3s2.3p4.
Neithr!!! An atom of Cobalt contains 27 electrons.
The electron configuration for an atom of fluorine is [He]2s2.2p5.
Electron configuration for an atom is the distribution of electrons on atomic orbitals.
The arrangement of the electrons in an atom is known as its electron configuration.
neon!
calcium has the complete electronic configuration: 2, 8, 8 2 and hence has 2 valence electrons.