Element
Melting point °C
Remarks
Mercury (Hg)
| -38.9
| Toxic
| Cesium (Cs)
| 28.5
| Highly reactive
| Gallium (Ga)
| 29.8
| Very rare
| Rubidium (Rb)
| 38.9
| Highly reactive
| Potassium (K)
| 63.7
| Highly reactive
| Sodium (Na)
| 97.8
| Highly reactive
| Indium (In)
| 156.9
| Very rare
| Lithium (Li)
| 179.0
| Highly reactive
| Tin (Sn)
| 231.9
| Not toxic available
| Bismuth (Bi)
| 271.3
| Availability not clear
| Thallium (Tl)
| 303.5
| Toxic
| Cadmium (Cd)
| 320.8
| Toxic
| Lead (Pb)
| 321.5
| Toxic
| |