The electronic configuration of an element wi | vedclass

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(C) The atomic number of nitrogen $(N)$ is $7$. According to the Aufbau principle,the electrons fill the orbitals in increasing order of energy: $1s,

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$1s^2, 2s^2 2p_x^1 2p_y^1 2p_z^1$

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(C) The atomic number of nitrogen $(N)$ is $7$. According to the Aufbau principle,the electrons fill the orbitals in increasing order of energy: $1s, 2s, 2p$. The electronic configuration is $1s^2 2s^2 2p^3$. According to Hund's rule of maximum multiplicity,for degenerate orbitals (like $2p_x, 2p_y, 2p_z$),electrons occupy each orbital singly before pairing begins. Therefore,the configuration is $1s^2, 2s^2, 2p_x^1, 2p_y^1, 2p_z^1$.

The electronic configuration of an element with atomic number $7$ i.e. nitrogen atom is

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