Chemistry - GENERAL CHEMISTRY Question with Solution | TestHub

ChemistryGENERAL CHEMISTRYElectronic ConfigurationMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension

Information-1: Principal Quantum Number '' is defined as .

Information-2: Azimuthal Quantum Number '' is defined as to in integral steps.

Information-3: Magnetic Quantum Number '' is defined as to (in integral steps), including zero if any.

Information-4: Spin Quantum Number '' has six possible values: .

Information-5: The sub-shells corresponding to are designated as S, P, D, F, G, H, I, J, K, respectively.

Information-6: The values of for a given value of give the number of orbitals is a sub-shell.

 

Information-7: The principles for filling electrons in the shells remain unchanged.

On the basis of the above information, answer the following questions.

For the element having atomic number ' 43 ', the last electron enters in:

Options:

Answer:
D
Solution:

Using Aufbau principle and extended subshell notation

  • 1G, 2G, 2F, 1H represent high-l orbitals.
For Z = 43 (Technetium), last electron enters 1H orbital.

Stream:JEESubject:ChemistryTopic:GENERAL CHEMISTRYSubtopic:Electronic Configuration
⏱ 2mℹ️ Source: QB

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