Among the alkaline earth metals (Be,Mg,Ca,and | vedclass

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(D) The tendency to form ionic bonds increases as we move down the group due to the increase in atomic size and decrease in ionization energy.$BeCl_2$

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$Sr$

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(D) The tendency to form ionic bonds increases as we move down the group due to the increase in atomic size and decrease in ionization energy.$BeCl_2$ is covalent due to the small size and high polarizing power of the $Be^{2+}$ ion.$MgCl_2$ is predominantly covalent with some ionic character.$CaCl_2$ and $SrCl_2$ are ionic in nature.Among the given options,$Sr$ is the most electropositive and forms a purely ionic chloride.

Among the alkaline earth metals ($Be$,$Mg$,$Ca$,and $Sr$) of group $IIA$,which one forms an ionic chloride?

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