Group 1 includes the alkali metals. what are the general properties of elements in this group

The general properties of Group 1 alkali metals are:
1. They form cations. 
2. They are highly reactive. 
3. They have a charge of +1.
4. They form ionic compounds. 
5. When their oxides or hydroxides are reacted in water, they form alkalis i.e. bases. 
6. They are usually soft in nature. 
7. They have low densities.