The bromine atom possesses 35 electrons. It c | vedclass

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(C) The effective nuclear charge $(Z_{eff})$ experienced by an electron in a multi-electron atom depends on the distance of the orbital from the nucle

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$4p$ electrons

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(C) The effective nuclear charge $(Z_{eff})$ experienced by an electron in a multi-electron atom depends on the distance of the orbital from the nucleus and the shielding effect of inner electrons.As the principal quantum number $(n)$ increases,the average distance of the electron from the nucleus increases,leading to a decrease in $Z_{eff}$.In the bromine atom $(Z = 35)$,the $4p$ orbital has the highest principal quantum number $(n = 4)$ compared to $2p$ $(n = 2)$ and $3p$ $(n = 3)$.Therefore,the electrons in the $4p$ orbital are farthest from the nucleus and are most effectively shielded by the inner electrons,resulting in them experiencing the lowest effective nuclear charge.

The bromine atom possesses $35$ electrons. It contains $6$ electrons in $2p$ orbital,$6$ electrons in $3p$ orbital and $5$ electrons in $4p$ orbital. Which of these electrons experiences the lowest effective nuclear charge?

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