Sulphur dioxide (S02) is a colourless pungent smelling gas and is a major air pollutant.
(a) Write the electronic configuration of its constituent elements ‘sulphur and oxygen’.
(b) Write valency of sulphur and oxygen.
© Are sulphur and oxygen isotopes of same element ? Explain your answer.
(a) S(2,8,6), O(2,6)
(b) Valency = 2
© No, they are not isotopes as their atomic number is different.