The Periodic Table of Elements
17
Cl
Chlorine
35.453(2) amu
Additional Information:
| State | Group Block | Density | Atomic Radius | Electron Affinity | Ionization Energy | Melting Point | Boiling Point | Year Discovered |
|---|---|---|---|---|---|---|---|---|
| gas | halogen | 0.003214 kg/L | 99 pm | -349 | 1251 kJ/mol | 172 °K | 239 °K | 1774 |
