The elements which occupy the peaks of ionization energy curve are

Na,K,Rb,Cs

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Na,Mg,Cl,L

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Cl,Br,I,F

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He,Ne,Ar,Kr

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Solution

The correct option is D
He,Ne,Ar,Kr

All the noble gases occupy the peaks of the I.E. curve since they have the highest I.E in any given period.

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Similar questions

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)

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

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

F, N a, F e, C l, N e

The elements which occupy the peaks of ionization energy curve, are

I

A l > S i > P > C l

I I

B e < M g < C a < S r

I I I

I < B r < C l < F

I V

{N a}^{+} < {M g}^{2 +} < {A l}^{3 +} < {S i}^{4 +}

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