Chemistry - GENERAL CHEMISTRY Question with Solution | TestHub

ChemistryGENERAL CHEMISTRYElectronic ConfigurationMedium2 minQB

ChemistryMediumsingle choice

Which of the following configuration belongs to s-block elements ?

Answer:

Solution:

An s-block element's last electron enters the s-orbital of its outermost shell.

Option 1: $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{1}$ is a d-block element (Copper).

Option 2: $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{1}$ is an s-block element (Potassium).

Therefore, option (B) represents an s-block element.

Stream:JEESubject:ChemistryTopic:GENERAL CHEMISTRYSubtopic:Electronic Configuration

⏱ 2mℹ️ Source: QB

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