Question

Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
(a) sulphur and krypton
(b) krypton and ozone
(c) phosphorus and sulphur
(d) krypton and sulphur

Answer 1

(d) krypton and sulphur

Out of ozone, phosphorus, sulphur and krypton, krypton has the lowest atomicity and sulphur the highest .