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The ratio of close packed atoms to tetra...

The ratio of close packed atoms to tetrahedral holes in cubic close packing is

A

` 1 : 1 `

B

` 1 : 2 `

C

`1 : 3`

D

2

Text Solution

Verified by Experts

The correct Answer is:
A
In CCP lattice atoms
` = ((1)/(8) xx 8) + (6 xx (1)/(2))`
` = 1 + 3 = 4`
and tetrahedral voids ` = 4 xx 2 = 8 `
Ratio ` = 4 : 8 rArr 1 : 2 `
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