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Which of the following have the same num...

Which of the following have the same number of electrons in outermost shell? 

A

Elements with atomic numbers 30, 48, 80

B

Elements with atomic numbers 14, 15, 16

C

Elements with atomic numbers 20, 30, 50

D

Elements with atomic numbers 10, 18, 26

Text Solution

Verified by Experts

The correct Answer is:
A
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