- Low density

- Lower boiling and melting point than other metals

- Form colored compounds

- Most reactive metal

- Density increases as you go down the group

- Melting and boiling point decrease as you go down the group

- Softness increases as you go down the group

- High density

- High boiling points

- Act as catalysts

- High melting points

- Form ions with different charges

- Density decreases as you go down the group

- Boiling temp increases as you go down the group

- Density and boiling points increasing as you go down the group

- Form colorless gases and occur naturally in air

- Exist as monatomic molecules

- Extremely reactive

- Density and boiling points increasing as you go down the group

- Exist as diatomic molecules

- Reactivity with water increases as you go down the group

- Poisonous

- Color gets darker as you go down the group

- Reactivity with iron wool decrease as you go down the group