Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureQuantum NumbersMedium2 minQB

ChemistryMediuminteger

Not considering the electronic spin, the degeneracy of the first excited state of $Be^{3 +}$ is 4 . What is the degeneracy of the third excited state of $Be^{2 +}$ ?

Answer:

Solution:

$Be^{3 +}$ is hydrogen like, i.e, energy depends only on $n$ , while $Be^{2 +}$ is a multi-electron system and hence energy depends on $(n + l)$ value. The third excited state of $Be^{2 +}$ is 3 s orbital.

Stream:JEESubject:ChemistryTopic:Atomic StructureSubtopic:Quantum Numbers

⏱ 2mℹ️ Source: QB

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