Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureQuantum NumbersMedium2 minQB

ChemistryMediumsingle choice

Find the correct set of quantum numbers for $3 0^{th}$ electron entered into Ga(At. No. 31)

Answer:

Solution:

Concepts: Aufbau principle, Hund's rule, Pauli exclusion principle, quantum numbers (n, l, m_l, m_s).

Ga (Z=31) electron configuration: $[A r] 3 d^{10} 4 s^{2} 4 p^{1}$ . The 30th electron is in 3d.

For 3d: $n = 3$ , $l = 2$ . For $m_{l} = - 1$ , $m_{s} = + 1/2$ .

Stream:JEESubject:ChemistryTopic:Atomic StructureSubtopic:Quantum Numbers

⏱ 2mℹ️ Source: QB

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