Sodium
Na grey metallic solid; MP 98oC
Fizzes and moves around on the surface of the water. It may catch fire and burns with a yellow flame.
Sodium burns with a yellow (yellow/orange) flame and produces a white powder.
Sodium oxide is an ionic solid; MP 1275oC
Dissolves in water to form a basic solution
Mg silver metallic solid; MP 650oC
Reaction with water
Reacts slowly with cold water to produce magnesium hydroxide and hydrogen
Reaction with steam
Reacts vigorously with steam to produce magnesium oxide and hydrogen.
Magnesium burns with a bright white flame and produces a white powder of magnesium oxide
Magnesium oxide is an ionic solid; MP 2900oC
It is only slightly soluble, it is a basic oxide.
Magnesium
Aluminium
Aluminium does not react with water.
Aluminium burns in oxygen with a bright white light
Silicon
Silicon burns with a white flame to produce a white powder.
Phosphorus
Phosphorus burns with a white flame to produce a white powder.
Sulfur
Sulfur burns with a blue flame to produce a choking acidic gas of sulfur dioxide.
Chlorine
Chlorine dissolves in water to give a pale green solution.