The number of valence electrons in one mole o | vedclass

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(D) The nitride ion is represented as $N^{3-}$.The atomic number of nitrogen $(N)$ is $7$,and its electronic configuration is $1s^2, 2s^2, 2p^3$.When

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$8$

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(D) The nitride ion is represented as $N^{3-}$.The atomic number of nitrogen $(N)$ is $7$,and its electronic configuration is $1s^2, 2s^2, 2p^3$.When it gains $3$ electrons to form the nitride ion $(N^{3-})$,its electronic configuration becomes $1s^2, 2s^2, 2p^6$.The valence shell is the $n=2$ shell,which contains $2 + 6 = 8$ electrons.Therefore,$1$ mole of $N^{3-}$ ions contains $8$ moles of valence electrons.

The number of valence electrons in one mole of nitride ion is ............ mole.

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