Find the distance between two Po atoms that lie along a body diagonal, given that a = 0.336 nm.

Explanation

The coordinates of the two atoms are (0, 0, 0) and (1, 1, 1) respectively. Thus,
`l = 0.336 [(1-0)^(2) + (1-0)^(2) + (1-0)^(2)]^(1/2)`……….(Eqn.2)
=0.582 nm