Short Answer TypeWhat happens when a burning magnesium ribbon is introduced into a jar of carbon dioxide?
Long Answer TypeShort Answer TypeDiscuss the general trends in atomic and ionic radii of alkali metals.
The atoms of alkali metals have the largest size in their respective periods. The atomic radii increase on moving down the group among the alkali metals.
Reason: On moving down the group, there is a progressive addition of new energy shells. Although, the nuclear charge also increases down the group yet the effect of the addition of new shells is more predominant.
The radii of positive ion are smaller as compared to that of parent atom. Within the group, the ionic radii increase with the increase in atomic number.
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