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When adding electrons to a level,sublevel, or orbital there are three rules that need to be followed. Choose the correct definition for each rule.

When Adding Electrons To A Levelsublevel Or Orbital There Are Three Rules That Need To Be Followed Choose The Correct Definition For Each Rule class=

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Answer:

Aufbau Principle: Electrons occupy orbitals of lower energy first.

Pauli Exclusion Principle: An orbital can hold only two electrons and they must have opposite spin.

Hund's Rule: Electrons fill each orbital singly before any orbital gets a second electron.

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