In the primitive cubic unit cell, the atoms are present at the:

If the atoms of an element have the radius r, then in a primitive cubic unit cell, calculate (a) the length of the face diagonal. (b) the lenth of the body diagonal.

Assertion(A) : The total number of atoms present in a simple cubic unit cell is one. Reason ( R) : Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent unit cells.

Assertion ( A) : The total number of atoms present in a simple cubic unit cell is one . Reason ( R ) : Simple cubic unit cell has atoms at incorners each of which is shared between eight adjacent unit cells .

First three nearest neighbour distance for primitive cubic unit cell will be (edge length of unit cell = a)