The atomic number of silicon is 14. Its groun | vedclass

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(C) The atomic number of silicon is $Z = 14$,which means it has $14$ electrons.According to the Aufbau principle,electrons fill orbitals in order of i

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$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{2}$

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(C) The atomic number of silicon is $Z = 14$,which means it has $14$ electrons.According to the Aufbau principle,electrons fill orbitals in order of increasing energy: $1s, 2s, 2p, 3s, 3p, 4s, \dots$Filling the orbitals with $14$ electrons:$1s$ orbital takes $2$ electrons $(1s^2)$.$2s$ orbital takes $2$ electrons $(2s^2)$.$2p$ orbital takes $6$ electrons $(2p^6)$.$3s$ orbital takes $2$ electrons $(3s^2)$.Remaining electrons: $14 - (2 + 2 + 6 + 2) = 2$ electrons.These $2$ electrons go into the $3p$ orbital $(3p^2)$.Thus,the configuration is $1s^2 2s^2 2p^6 3s^2 3p^2$.

The atomic number of silicon is $14$. Its ground state electron configuration is

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