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Ionic Radii and Ionisation Enthalpy (Group 2)

Alkaline eart...

Question

Alkaline earth metal salt are :

A

paramagnetic

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B

diamagnetic

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C

ferromagnetic

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D

all of these

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Solution

The correct option is A diamagnetic
Alkali earth metals are diamagnetic.
Atoms or elements which are having even number of electrons or no unpaired electrons are diamagnetic.
Alkaline earth metals are having even number of electrons(Be,Mg,Ca,Sr,Ba,Ra having electrons 4,12,20,38,56 and 88 respectively which are even in number)
Hence option B is correct

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