Question

If the edge of a body-centred unit cell is 360 pm, what will be the approximate radius of the atom present in it? (in pm)

Options

• 311.4

• 155.7

• 173.0

• 180.0

Answer 1

155.7

Explanation:

For bcc unit cell, radius (r) of atom

= `sqrt3/4 "a"`

= `sqrt3/4 xx 360`

= 155.7 pm