Question

Explain the sequence of filling the orbit in nuclear model

Answer 1

sequence of filling the orbit in nuclear model

The Order of Filling Orbitals. The aufbau principle explains how electrons fill low energy orbitals (closer to the nucleus) before they fill higher energy ones. ... This means that the 4s orbital which will fill first, followed by all the 3d orbitals and then the 4p orbitals.

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Answer 2

The order of filling orbitals.the aufbau principle explains how electrons fill low energy pf orbitals ( closer to the nucleus) before they fill higher energy ones.
This means at the 4s orbitals which will first, followed by all the 3d orbital then the 4p orbitals.