Zusammenfassung der Ressource
Group 2
- Reactivity increases down the group
- Larger atomic radii
- More shielding
- Less nuclear attraction
- Lose electrons to form 2+ ions
- Group 2 oxides + water = group 2 hydroxides
- Thermal decompostition
- Group 2 carbonate = group 2 oxide + carbon dioxide
- Ca(OH)2 used to neutralise acidic soils
- Mg(OH)2 is used to neutralise excess acid in the stomach