Chemistry · Atomic Structure
For the electrons of an oxygen atom, which of the following statements is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The two electrons present in the 2s orbital have the same spin quantum number ms but with opposite signs.✓
- 2Zeff for an electron in a 1s orbital is the same as Zeff for an electron in a 2s orbital.
- 3An electron in the 2s orbital has the same energy as an electron in the 2p orbital.
- 4Zeff for an electron in a 2s orbital is the same as Zeff for an electron in a 2p orbital.
Correct answer
The two electrons present in the 2s orbital have the same spin quantum number ms but with opposite signs.
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