Question

Alkali metals are paramagnetic but their salts are diamagnetic. Explain.

Answer 1

Answer: All the alkali metals are paramagnetic because of the presence of one valence electron in the valence shell. ... Li+, Na+, K+, Rb+ and Cs+ all are diamagnetic because of absence of unpaired electrons. Therefore, their salts do not show paramagnetic property.

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Answer 2

   The elements which have their electron in the outermost orbital are s-orbital. The group of chemical elements such as lithium, potassium, rubidium, caesium, sodium and francium comprise in the table is known as periodic table which comes under the group named as alkali metals.

   In the valence shell of alkali metals there will be only one valence electron because all metals which come under the group alkali are “paramagnetic”.

   The cations of the alkali metals such as Li+, Na+, K+, Rb+ and Cs+ has no unpaired electrons so that they are diamagnetic. There salts don’t show paramagnetic property.