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How many electrons do the Group 2 elements have in their outer shell?
2
Group 2 metals form which type of ion?
cation
What is the trend in ionisation energy down the group?
Decreases
Why does ionisation energy decrease down the group?
Increased shielding, larger distance between nucleus and outermost electrons
What is the trend in atomic radius down Group 2?
Increases
Why does atomic radius increase down group 2
Extra principal quantum shell added for each period
What is the trend in melting point down group 2?
Decreases
Why does melting point decrease down the group?
Outer electrons are further from the nucleus, less forces of attraction which weakens metallic bonding
What is the trend in solubility of the hydroxides down the group?
Increases
What is the trend in solubility of the group 2 sulfates?
Decreases
Does Beryllium react with water?
No
Does Barium react with water?
Yes
Describe the reaction of Mg with water and steam
slow in cold water, reacts vigorously in steam
When Mg reacts with steam, what products are formed?
MgO and water
What gas is formed when group 2 metals react with acid?
Hydrogen
All group 2 carbonates are insoluble in water except for..
Beryllium carbonate
