General properties of metals
Physical properties:
- Strong
- Malleable
- Ductile
- Sonorous
- Shiny/lustrous (when polished)
- Good conductors of heat and electricity
- High melting and boiling points
- High density.
Chemical properties:
- React with dilute acids to form salts cand hydrogen
- React with water to form a metal hydroxide and hydrogen gas.
- React with oxygen to form oxides (metal oxides are basic)
- Form positive ions when they react. (Cations)
Comparing Reactivities -
With Water -
metal + water → metal hydroxide + hydrogen