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Which is correct about ionisation potential?

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By Expert Faculty of Sri Chaitanya

a

IE1 of N>IE1 of O

b

IE2 of N>IE2 of O

c

IE2 of Li>IE2 of Ne

d

IE1 of Al>IE1 of Ca

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detailed solution

Correct option is A

(1) True. IE1 of N>IE1 of O, due to half-filled configuration in N.(2) False. N2s22p3 (More stable) High IE1⟶N⊕2s22p2 (Less stable) −e−Low IE2⟶N2+2s12p1O2s22p4 (Less stable) ⟶ (Low IE1O⊕2s22p3(Morestable)−e−High IE2→O2+2s22p2 Hence, IE2 of O>IE2 of N.

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Similar Questions

IE₁ and IE₂ of Mg are 178 and 348 kcal mol^-1. The energy required for the reaction $Mg \to {Mg}^{2 +} + 2 e^{-}$ is __________.

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