- Elements are arranged in order of atomic number.
- Metals on the left and non-metals on the right,
- Group 1 are the Alkali metals and all react with water to form alkaline solution and hydrogen.
- Group 7 are the Halogens which form salts when they react with metals.
Group 1 Metals- The Alkali Metals
- Reactivity increases
- Density increases
- Melting point decreases
- Boiling point decreases
- With water they produce a HYDROGEN…