Which of the following have the same number of electrons in outermost shell?
Chemistry · Class 11 · CBSE — Classification of Elements and Periodicity in Properties
Which of the following have the same number of electrons in outermost shell?
- Elements with atomic numbers 30, 48, 80
- Elements with atomic numbers 14, 15, 16
- Elements with atomic numbers 20, 30, 50
- Elements with atomic numbers 10, 18, 26
Answer
(A) Elements with atomic numbers 30, 48, 80
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