Single Choice

A metallic crystal crystallizes into a lattice containing a sequence of layers $$ABABAB$$.... Any packing of spheres leaves out voids in the lattice. What percentage by volume of this lattice is empty space ?

A$$74$$%
B$$26$$%
Correct Answer
C$$50$$%
D$$None\ of\ these$$

Solution

$$ A B A B \text { type of packing means ccp packing in which } 74 \% \text { space is occupied and } 26 \% \text { is empty. } $$

SIMILAR QUESTIONS

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