Which of the following represents the ground | vedclass

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(B) The ground state electronic configuration follows the Aufbau principle,where electrons fill orbitals in increasing order of energy. Option $B$ rep

Vedclass · Accepted Answer

$1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^6 5s^1$

Vedclass · Answer

(B) The ground state electronic configuration follows the Aufbau principle,where electrons fill orbitals in increasing order of energy. Option $B$ represents the configuration of Rubidium ($Rb$,$Z=37$),which is $1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^6 5s^1$. This configuration correctly follows the order of energy levels $(1s Other options represent either excited states or incorrect filling sequences.

Which of the following represents the ground state electronic configuration of an atom?

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