Highlight the Similarities between Lithium and Magnesium

Answer: The similarities that Lithium and Magnesium share are as follows-

1. Both lithium and magnesium decompose on heating and hydroxides of both the elements are weak bases.
2. Lithium and magnesium are quite hard.
3. Both the elements react to water very slowly.
4. They both exhibit covalent characters.
5. The chlorides of these elements are soluble in ethanol.

Lithium and magnesium show a diagonal relationship

1. The size of lithium is similar to the size of magnesium. They have an identical size of ions.
2. The diagonally adjacent elements in the 2nd and 3rd periods of the periodic table exhibit a diagonal relationship.