Ionisation and gr 2
Loses 2 elects so has 2nd ionisation energy Decreases down group CONSIDER -nuclear charge -orbital -shielding
Reactions with Ox
Vigorous burning (increases down Gruppe) Forms oxides in air so store in oil
Reaction with Chlorine
More cig down Gruppe
Gas goes cloudy
White gas and bright flame
Reaction with water
Effervescence increases down Gruppe
Mg and steam
Produces oxide and H2
Oxides and hydroxides
BASIC
React with water to produce solution of hydroxide
Reactivity
Increases down group
Increase in shielding
Increase in atomic radii
Test for SO4 2-
Add HCl (takes out chlorides)
Add Barium chloride
If precip forms SO4 pres.