Chemistry of The Elements

• 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…