Classify the following atoms as diamagnetic or paramagnetic. H, O… - Vidyadip

Question

Classify the following atoms as diamagnetic or paramagnetic.
$H, O, Zn, Fe, F, Ar, He$
(Hint : Write down their electronic configurations)
Is it true that all substances with even number of electrons are diamagnetic?

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Answer

Atoms	Electronic configuration	No. of Electrons	Diamagnetic/Paramagnetic
$H$	$1s^1„$	$1$	Diamagnetic
$0$	$1s^22s^22p^4$	$8$	Paramagnetic
$Zn$	$1s^22s^22p^63s^23p^63d^{10}4s^2$	$30$	Diamagnetic
$Fe$	$1s^22s^22p^63s^23p^64s^23d^6$	$26$	Neither diamagnetic nor paramagnetic (ferromagnetic)
$F$	$1s^22s^22p^5$	$9$	Paramagnetic
$Ar$	$1s^22s^22p^63s^23p^6$	$18$	Diamagnetic
$He$	$Is^2$	$2$	Diamagnetic

It can be seen that all substances with an even number of electrons are not necessarily diamagnetic.

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