Science · Chemistry

What is the correct order of increasing energy for filling electrons into different orbitals?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

11s < 2s < 2p < 3s✓
22s < 1s < 2p < 3s
31s < 3s < 2s < 2p
41s < 2s < 3s < 2p

Correct answer

1s < 2s < 2p < 3s

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