Consider the following sets of quantum numbers :

	n		l		m		s
(i)	3		0		0		+1/2
(ii)	2		2		1		+1/2
(iii)	4		3		-2		-1/2
(iv)	1		0		-1		-1/2
(v)	3		2		3		+1/2

Which of the following sets of quantum number is not possible ?

Identify the correct order of the size of the following :

Which one of the following ionic species has the greatest proton affinity to form stable compound ?

With which of the following electronic configuration an atom has the lowest ionisation enthalpy ?