what is the difference between hexagonal closed packing and cubic closed packing?

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Solution

Hexagonal closed packing Cubic Closed Packing
1. The third layer of spheres is same as the first layer. 1. The fourth layer of spheres is same as the first layer .
2.The atoms are stacked in ABABAB form while , 2. The atoms are stacked in ABCABC form.
3. It covers tetrahedral voids 3. It covers octahedral void

Hexagonal closed packing	Cubic Closed Packing
1. The third layer of spheres is same as the first layer.	1. The fourth layer of spheres is same as the first layer .
2.The atoms are stacked in ABABAB form while ,	2. The atoms are stacked in ABCABC form.
3. It covers tetrahedral voids	3. It covers octahedral void

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What is the distinguishing layer between hexagonal close packing and cubic close packing?

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(i) hexagonal close-packing and cubic close-packing?

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