Home Chemistry Classification of Elements and Periodicity Valency and Oxidation State All element in 3rd period have
Chemistry Classification of Elements and Periodicity Valency and Oxidation State Single Correct MCQ
Published on: August 12, 2026

All element in 3rd period have

A
An atomic number 3
B
3 complete sub-shells
C
Valence electrons shell
D
3 electrons less than the octet

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The correct answer is:
B
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