Answer: Silicon and Carbon have the same number of valence electron.
Explanation:
According to the electronic configuration,
Barium= 56 = 2,8,18,18,8,2
The electronic configuration of Barium
[tex]Ba = 1s^2,2s^2 2p^6,3s^2 3p^6 3d^{10},4s^2 4p^6 4d^{10},5s^25p^6,6s^2[/tex]
Neon = 10 = 2,8
The electronic configuration of Neon
[tex]Ne=1s^2,2s^22p^6[/tex]
Silicon = 14 = 2,8,4
The electronic configuration of Silicon
[tex]Si=1s^2,2s^22p^6,3s^23p^2[/tex]
Carbon = 6 = 2,4
The electronic configuration of Carbon
[tex]C=1s^2,2s^22p^2[/tex]
Two elements Si and C have the same number of valence electron.
Hence, Silicon and Carbon have the same number of valence electron.
