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Question

Arrange the following as per instructions given in the brackets. 

(a) Mg. Cl, Na, S, Si (decreasing order of atomic size)

(b) Cs, Na, Li, K, Rb (increasing metallic character)

(c) Na, K, Cl, S, Si (increasing ionisation potential)

(d) Cl, F, Br, I (increasing electron affinity)

(e) Cs, Na, Li, K, Rb (decreasing electronegativity)


Solution

a)Na>Mg>Si>S>Cl
b)Li<Na<K<Cs<Rb
d)Cl>F>Br>I
As the size of Fluorine is smaller electron repelsion is more
and in Br and I, nuclear influence is less
e)Li,Na,K,Rb,Cs
as we go down the group the electronegativity decreases

Chemistry
Concise Chemistry
Standard X

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