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Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar?

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Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar?

(a) Ca < S < Ba < Se < Ar

(b) S < Se < Ca < Ba < Ar

(c) Ba < Ca < Se < S < Ar

(d) Ca < Ba < S < Se < Ar

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1 Answer

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by (55.9k points)

Correct option is (c) Ba < Ca < Se < S < Ar

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