What happens to group 2 elements reactign with water going downa group?
= increases down the group
When group 2 hydroxides dissolve in water what happens?
= releases metal ion
= 2 hydroxide ions
= aq hydroxide ions make the solution alkaline
What determines the alkalinity of the solution?
= concentration of aq OH ions
= high concentration- alkaline
What happens to the alkalinity as we move down the group?
= increases