Chemistry - f-block Question with Solution | TestHub
Chemistryf-blockf-blockMedium2 minPYQ_2023
ChemistryMediumsingle choice
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Ionisation enthalpies of early actinoids are lower than for early lanthanoids. Reason (R) : Electrons are entering orbitals in actinoids which experience greater shielding from nuclear charge. In the light of the above statements, choose the correct answer from the options given below:NEET 2023 (Manipur)
Options:
Answer:
A
Solution:
Ionisation enthalpies of early actinoids are lower than early lanthanoids. This is because orbitals will penetrate less into the inner core of electrons. The electrons, will be more effectively shielded from the nuclear charge than the electrons of corresponding lanthanoids.
Stream:NEETSubject:ChemistryTopic:f-blockSubtopic:f-block
⏱ 2mℹ️ Source: PYQ_2023
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