Question:medium
Which of the following represents the correct increasing order of first ionization enthalpy for Ca, Ba, S, Se and Ar?
Which of the following represents the correct increasing order of first ionization enthalpy for Ca, Ba, S, Se and Ar?
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Chemistry Tip: Down a group ionization enthalpy decreases because outer electron is farther from nucleus and more shielded.
Updated On: Apr 27, 2026
- Ca < S < Ba < Se < Ar
- Ar < S < Ba < Se < Ca
- Ba < Ca < Se < S < Ar
- Ba < Ca < S < Se < Ar
- Ca < S < Ar < Se < Ba
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The Correct Option is C
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