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Chemistry - GENERAL CHEMISTRY Question with Solution | TestHub

ChemistryGENERAL CHEMISTRYElectronic ConfigurationMedium2 minQB

ChemistryMediumsingle choice

Passage / Comprehension

The general electronic configuration of outer most and penultimate shell is given as (n – 1)s² (n – 1)p⁶ (n - 1)d^x ns² . Then for an element with n = 4 and x = 6.

The number of unpaired electrons in the divalent cation of the given element in isolated gaseous state is :-

Options:

Answer:

Solution:

Given : $n = 4 x = 6$

outermost and penultimate shell $= 3 s^{2} 3 p^{6} 3 d^{6} 4 s^{2}$

Now Complete configuration $\Rightarrow Total 26 e^{-} 1 s^{2} 2 s^{2} 2 p^{6} 3 d^{6} 4 s^{2}$

So element with $26 e^{-} = Fe$ (Iron)

Element $= Fe$

Stream:JEESubject:ChemistryTopic:GENERAL CHEMISTRYSubtopic:Electronic Configuration

⏱ 2mℹ️ Source: QB

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