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When electrons are filling energy levels, the lowest energy sublevels are occupied first. This is A. None of these B. The Aufbau principle C. Hund's rule D. Conservation of…

When electrons are filling energy levels, the lowest energy sublevels are occupied first. This is A. None of these B. The Aufbau principle C. Hund's rule D. Conservation of…
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1 vote
When electrons are filling energy levels, the lowest energy sublevels are

occupied first. This is
A. None of these
B. The Aufbau principle
C. Hund's rule
D. Conservation of energy
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asked
User Richq
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8.2k points

1 Answer

5 votes
D. Conservation of energy
answered
User Manu M
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8.4k points
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