group 2 metals
- Created by: Harriet Bacon
- Created on: 17-12-19 10:10
View mindmap
- Group 2 Metals
- atomic radius
- radius increases down
- additional electron shells
- radius increases down
- reactivity
- increased shielding down
- outer electrons easier to lose
- increases down
- increased shielding down
- ionisation energy
- first ionisation decreases down
- greater atomic radius
- increased amount of shielding
- first ionisation decreases down
- melting point
- metallic
- larger ions, weaker attraction
- act over greater distance
- decreases down
- metallic
- reactions with water
- metal hydroxide and water
- alkaline solution
- Mg(l) reacts slowly with water. Mg(g) reacts quick
- extra energy
- with steam...
- bright white flame
- magnesium oxide - white powder
- metal hydroxide and water
- solubility of hydroxides
- increases down
- magnesium hydroxide least
- barium hydroxide most
- magnesium hydroxide uses:
- antacid
- alkaline - neutralise acids
- agriculture - acidic soils
- solubility of sulfates
- decrease down
- barium sulfate insoluble - barium meals
- internal tissues and organs imaged
- not absorbed in blood
- barium chloride teat for sulfate ions
- form barium sulfate - white powder
- metal extraction
- extraction of titanium
- displacement reaction
- extraction of titanium
- flue gas removal
- calcium oxide reacts with sulfur dioxide
- prevent being released into atmosphere
- form calcium sulfite and water
- atomic radius
Comments
No comments have yet been made