A metallic element crystallises into latticee containing a sequence of layers of ABABAB…… packing of spheres leaves out voids in the lattice. What precentage by volume fo the lattice is empty space ?

A metallic element crystallises into latticee containing a sequence of

1.	A metallic element crystallises into latticee containing a sequence of layers of ABABAB…… packing of spheres leaves out voids in the lattice. What precentage by volume fo the lattice is empty space ?
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A metallic element crystallises into latticee containing a sequence of layers of ABABAB…… packing of spheres leaves out voids in the lattice. What precentage by volume fo the lattice is empty space ?

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