Question
Statement 1 : Ionisation energy decreases in a period.
Statement 2 : In a period Z dominates over screening effect
Options :
Both statements 1 and 2 are correct
Both statements 1 and 2 are incorrect
Statement 1 is correct and statement 2 is incorrect
Statement 1 is incorrect but statement 2 is correct
Answer :
Statement 1 is incorrect but statement 2 is correct
Solution :
Ionisation enthalpy increases in a period. Z dominates over screening effect (σ) in a period as Zeff. increases.
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