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The element with atomic number 9,17,35,5...

The element with atomic number `9,17,35,53,85` are all

A

Noble gases

B

Halogens

C

Heavy metals

D

Light metals

Text Solution

Verified by Experts

The correct Answer is:
B
These atomic no. gives the configuration `ns^(2)np^(5)` which are of halogen group or `VII^(th)` group.
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