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Question Question 8(iii)
X [2, 6] and Y [2, 8, 8, 1] are two elements.
Using this information complete the following:
(a) ............... is the metallic element.
(b) Ionisation energy of X is ............... than Y.
(c) ............... is the reducing agent.
(a) Y is the metallic element.
(b) Ionisation energy of X is greater than Y.
(c) Y is the reducing agent.
Explanation
(a) Y is the metallic element as it has one valence electron.
(b) Atomic size of X is less than Y as X has 2 shells while Y has 3 shells. As, ionisation energy decreases with increase in atomic size, hence ionisation energy of X is greater than Y.
(c) Y has the tendency to lose its one valence electron and get oxidised. Hence, it acts as a reducing agent.