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CBSE Class 12-science Answered

In which packing the first and third layer are same.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

In hexagonal  packing the first and third layer are same represented as AB-AB packing.

Answered by | 04 Jun, 2014, 03:23: PM

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CBSE 12-science - Chemistry
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Asked by anukritisingh8103.bmps | 18 May, 2020, 03:00: PM
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CBSE 12-science - Chemistry
sir in types of unit cell we studied it can be of 4 types i.e primitive, face centred, body centred and end centred, but while studing 3D close packing it was told that it can be of 3 types i,e. simple(primitive) cubic unit cell, hcp and ccp. but i am not able  to understand that hcp is a type of unit cell or it is one of the 7 crystal system or somthing else?and if it is type of unit cell then why it is not taught under the topic types of unit cell. and if it is a crystal system then what about the rest 6 crystal system, then why rest 6 crystal system does not comes under 3 dimensional close packing?
Asked by rohitraman1115 | 10 Sep, 2019, 07:10: PM
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CBSE 12-science - Chemistry
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CBSE 12-science - Chemistry
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