Question

The orbital diagram in which the Aufbau principle is violated
is :

Answer 1

Answer:

The orbital diagram in which 'aufbau principle' is violated, is represented by the option (B). Aufbau principle: In the ground state of the atoms, the orbitals are filled with electrons in order of increasing energy.

Answer 2

Afbau's principle is violated in option B.

Explanation:

Afbau's principle promises that the filling of the electrons in the orbitals are according to their energy levels.

The least energy orbitals are first filled then the upper energy orbitals are filled.

Here in option 1, 3 and 4 we can see that the 2 s orbitals are first filled.

Then the 2p orbitals are filled.

But in option B, the 2s orbital is half filled and the 2p orbitals are filled.

This is against the rule of the energy conservation.

So this cannot occur.

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