a basic building block of a crystal

the cell containing smallest group of atoms randomly

an unit cell in which lattice points are located only at its corners

an unit cell of end centred monoclinic crystal

A primitive cell is:

1.	A primitive cell is:
A.	the cell containing smallest group of atoms randomly
B.	an unit cell in which lattice points are located only at its corners
C.	a basic building block of a crystal
D.	an unit cell of end centred monoclinic crystal
Answer» C. a basic building block of a crystal

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A primitive cell is:

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