The electrons are filled in various sub levels according to the order of their energies, is known as:

Aufbau principle

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Pauli's principle

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Hund's rule

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n l^{x}

principle

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Solution

The correct option is A Aufbau principle
The order of filling of orbitals from lower energy to higher energy is explained by the Aufbau's principle and the $n + l$ rule.

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The electrons are filled in various sub levels according to the order of their energies, is known as:

The correct option is A Aufbau principleThe order of filling of orbitals from lower energy to higher energy is explained by the Aufbau's principle and the n+l rule.

The correct option is A Aufbau principle
The order of filling of orbitals from lower energy to higher energy is explained by the Aufbau's principle and the $n + l$ rule.