- Lithium (0.534 g/cm³)

- Sodium (0.971 g/cm³)

- Potassium (0.862 g/cm³)

- Rubidium (1.532 g/cm³)

- Cesium (1.879 g/cm³)

- Calcium (1.55 g/cm³)

- Strontium (2.63 g/cm³)

- Barium (3.51 g/cm³)

- Magnesium (1.738 g/cm³)

- Aluminum (2.70 g/cm³)

- Titanium (4.506 g/cm³)