What is one other name for the group 1 metals and why do they need to be stored under oil?

Alkali metals react with water to produce hydrogen and a hydroxide. Are alkali metal hydroxides soluble or insoluble?

As we go down the group the alkali metals become more reactive. Why is this?

Oxidation is the process of losing electrons. Write the equation for the formation of a lithium ion.

How do the physical properties of group 1 elements generally alter as we go down the periodic table?