Which of the pair of elements would you expect to have lower first ion – InterviewSolution

1.	Which of the pair of elements would you expect to have lower first ionization enthalpy? Explain your answer.Cl or S
Answer» S: Sulphur has a lower value of first ionization enthalpy as compared to chlorine. This is because on moving along a period from left to right the atomic size decreases and hence ionization enthalpy increases. Sulphur has a bigger size and hence lower value of its first ionization energy.

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