inorganic chemistry and the periodic table

Question 1

how many electrons do group 2 metals loose in a rection

Answer 1

2 to achieve a full outer shell

Question 2

what is the trend in atomic radius as you go down group 2 and why

Answer 2

the atomic radius increases due to additional electron shells

Question 3

what is the trend in reactivity as you go down group 2

Answer 3

the reactivity increases as there is additional electron shells that act as shielding. in addition, the atomic radius is increased so there are lower inter molecular forces

Question 4

what happens to the ionisation energy of elements as you go down group 2

Answer 4

decreases due to a larger atomic radius and additional sheilding

Question 5

what do group 2 metals react with water to form

Answer 5

a metal hydroxide and hydrogen

Question 6

whats the equation for a group 2 metal reacting with water

Answer 6

Mg+H2O–>Mg(OH)2+H2

Question 7

is the metal hydroxide an acidic or an alkaline solution

Answer 7

an alkaline solution

Question 8

what do acids and group 2 hydroxides form when they react

Answer 8

a salt and water

Question 9

what salts does hydrochloric acid form

Answer 9

chloride salts

Question 10

what salt does sulphuric acid form

Answer 10

sulphate salts

Question 11

what salt does nitric acid form

Answer 11

nitrate salts

Question 12

what is the trend in solubility in group 2 hydroxides

Answer 12

the solubility increases as you go down the group

Question 13

what g2 hydroxide is used in medicine the most as an antacid

Answer 13

magnesium

Question 14

what is the trend in solubility with group 2 sulfates

Answer 14

the solubility decreases down the group

Question 15

what is the most and lest soluble group 2 sulphate

Answer 15

magnesium is the most soluble barium is the least soluble