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The ratio of closed packed atoms to tetr...

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

A

`1:1`

B

`1:2`

C

`1:3`

D

`2:1`

Text Solution

Verified by Experts

The correct Answer is:
B
Every constituent has two tetrahedral voids. In ccp lattice atoms.
`= 8 xx 1/8 + 6 xx 1/2 = 4`
`therefore` Tetrahedral void `= 4 xx 2 = 8`
Thus ratio `=4:8 :: 1:2`
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