Chemistry - PERIODIC TABLE Question with Solution | TestHub
ChemistryPERIODIC TABLEIonisation Energy,Medium2 minQB
ChemistryMediumsingle choice
Statement-1 : The ionisation energy of is greater than that of ' In '.
Statement-2 : The effect of lanthanide contraction observed in Tℓ.
Options:
Answer:
A
Solution:
Statement-1 is true. Due to lanthanide contraction, the effective nuclear charge on Tl is higher than In, making it harder to remove an electron. Statement-2 is true and correctly explains Statement-1. Lanthanide contraction significantly increases the ionization energy of Tl.
Stream:JEESubject:ChemistryTopic:PERIODIC TABLESubtopic:Ionisation Energy,
⏱ 2mℹ️ Source: QB
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