Group 2 Flashcards
1
Q
Ionisation and gr 2
A
Loses 2 elects so has 2nd ionisation energy Decreases down group CONSIDER -nuclear charge -orbital -shielding
2
Q
Reactions with Ox
A
Vigorous burning (increases down Gruppe) Forms oxides in air so store in oil
3
Q
Reaction with Chlorine
A
More cig down Gruppe
Gas goes cloudy
White gas and bright flame
4
Q
Reaction with water
A
Effervescence increases down Gruppe
5
Q
Mg and steam
A
Produces oxide and H2
6
Q
Oxides and hydroxides
A
BASIC
React with water to produce solution of hydroxide
7
Q
Reactivity
A
Increases down group
Increase in shielding
Increase in atomic radii
8
Q
Test for SO4 2-
A
Add HCl (takes out chlorides)
Add Barium chloride
If precip forms SO4 pres.
