Question

Of 3 metals x y and z their atomic number is 11,12,13. metal x react with cold water y with hot water and z with steam find x,y sbd and z and write reason

Answer 1

X=Sodium
Y=Magnesium
Z=Aluminum

Sodium reacts with cold water because it is highly reactive.
Magnesium is moderately reactive hence it reacts with cold water.
Aluminum is not as reactive as Mg hence it reacts with Steam.