When radius of central atom is double with respect to corner atoms, then find out `%` packing efficiency

Which of the following is non-planar with respect to central atom ?

Find the relation between side length and radius of atom form body centred cubic lattice and also find the packing efficiency for the same pacing.

The efficiency of packing is 68% in

The hybridisation of the central atom will change when

If r is the radius of the octahedral voids and R is the radius of the atom in close packing,then :

The radius of an octahedral void is 'r' and the radius of an atom is 'R' when these are in close packing. Derive the relation between the two.

The hybridization of the central atom will change when :

The hybridization of the central atom will change when :

The hybridization of the central atom will change when :