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Q.

Atomic radius of Chlorine and Copper are 99pm and 128pm respectively. Identify correct statement from the following

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a

Covalent radius of chlorine and copper are 99pm and 128pm respectively

b

Covalent radius of chlorine is 99pm whereas covalent radius of copper is lesser than 128pm

c

Covalent radius of chlorine is 99pm and metallic radius of copper is lesser than 128pm

d

Covalent radius of chlorine is lesser than 99pm and covalent radius of copper is lesser than 128pm

answer is B.

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Detailed Solution

1) Chlorine is a non-metal;  for a non-metal,  atomic radius = covalent radius =99pm;2) Copper is a metal;  for a metal, atomic radius -metallic radius =128pm;covalent radius of metals will be lesser than their metallic radius;covalent radius of copper will be lesser than 128pm;
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Atomic radius of Chlorine and Copper are 99pm and 128pm respectively. Identify correct statement from the following