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  4. Which one of the following properties of alkali metals increases in magnitude as the atomic number rises?

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Q. Which one of the following properties of alkali metals increases in magnitude as the atomic number rises?

AIPMTAIPMT 1989The s-Block Elements

Solution:

The ionic radii of alkali metal increases as the atomic number increases when we move from top to bottom because on moving down the group, there is a increase in the number of shells and therefore, ionic radii increases.