Question

increasing order of filling electron in 4f, 5p and 6d subshells.

Answer 1

Answer:

The order of the electron orbital energy levels, starting from least to greatest, is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p. ... So, if there are open orbitals in the same energy level, the electrons will fill each orbital singly before filling the orbital with two electrons

Explanation:

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