SET-A	SET-B
1) Atomic radii	A) Non-metals
2) Radius of cation	B) Metals
3) Crystal radius	C)
4) Covalent radius	D) Nano metre
5) Effective nuclear charge	E) Smaller than atomic radius of parent atom

$\text{A}\to \text{S}$: Atomic radii is expressed in Nano metre or in Angstrom units.

$\text{B}\to \text{T}$: Radius of cat ion is smaller than atomic radius of parent atom.

$\text{C}\to \text{Q}$:it is also called as metallic radii, metallic radii is always larger than the covalent radii.

$\text{D}\to \text{P}$: Covalent radii is used for  non-metals.

$\text{E}\to \text{T}$: Effective nuclear charge is represented by  it is the net positive charge experienced by electron in a multi electron atom.