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Which of the given elements A, B, C, D a...

Which of the given elements `A, B, C, D and E` with atomic number `2, 3, 7, 10 and 30` respectively belong to the same period ?

A

`A, B, C`

B

`B, C, D`

C

`A, D, E`

D

`B, D, E`

Text Solution

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The correct Answer is:
B
The elements B (Z = 3), C (Z = 7) and D(Z = 10) belong to the same period. It is second period
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