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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

Which one of the following sets of quantum numbers is possible for an electron in a 4f-orbital?

Options:

$n$	$l$	$m$	$s$
$4$	$3$	$+ 4$	$+ 1 / 2$

$n$	$l$	$m$	$s$
$4$	$3$	$+ 1$	$- 1 / 2$

$n$	$l$	$m$	$s$
$4$	$4$	$+ 4$	$- 1 / 2$

$n$	$l$	$m$	$s$
$4$	$2$	$+ 4$	$+ 1 / 2$

Answer:

Solution:

Here quantum number set given in option B is correct for a 4f-orbital.
For 4f-orbital, n = 4 and l = 3. When l = 3, the possible values of m range from -3 to +3 including zero. The value of m cannot be greater than 'l'.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Mole ConceptSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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