If the intermolecular distance between two adjacent copper atoms in solid copper is 256 pm, then the metallic radius of copper is

Question

If the intermolecular distance between two adjacent copper atoms in solid copper is 256 pm, then the metallic radius of copper is (A) 128 pm (B) 12.87 mathringA (C) 74 pm (D) 74 mathringA

Tardigrade Admin · Accepted Answer

Internuclear distance between Cu-atoms in solid copper =256 pm. Metallic radius =(1/2) × length between two atoms =(1/2) × 256=128 pm

Q. If the intermolecular distance between two adjacent copper atoms in solid copper is $256 p m$ , then the metallic radius of copper is

$128 p m$

$12.87 \overset{˚}{A}$

$74 p m$

$74 \overset{˚}{A}$

Internuclear distance between $C u$ -atoms in solid copper $= 256 p m$ .
Metallic radius $= \frac{1}{2} \times$ length between two atoms
$= \frac{1}{2} \times 256 = 128 p m$

Q. If the intermolecular distance between two adjacent copper atoms in solid copper is 256pm, then the metallic radius of copper is

128pm

12.87A˚

74pm

74A˚