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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

1 Answer

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Best answer

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

Explanation:

lonisation energy increases along a period from left to right and decreases down a group. The position of given elements in the periodic table is as

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