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Which of the following sets of atomic nu...

Which of the following sets of atomic numbers belongs to that of alkali metals?

A

1, 12, 30, 4, 62

B

37, 19, 3, 55

C

9, 17, 35, 53

D

12, 20, 56, 88.

Text Solution

Verified by Experts

The correct Answer is:
B
Elements with atomic number 3, 11, 19, 37, 55, 87 are alkali metals.
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