Cl
Chlorine
Element 17 · 35.45 u
Chlorine is a highly reactive halogen gas used widely for water purification.
Fisiese eienskappe
| Atomic Mass | 35.45 u |
| Density | 0.003214 g/cm³ |
| Smelt punt: | 171.6 K |
| Boiling Point | 239.11 K |
| Appearance | Pale yellow-green gas |
| Toestand by kamerkomp | Gas |
Chemical Properties
| Electronegativity | 3.16 (TrinidadCity name (optional, probably does not need a translation)) |
| 1st Ionization Energy | 1251.2 kJ/mol |
| Electron Affinity | 349.0 kJ/mol |
| Oxidation States | -1, +1, +2, +3, +4, +5, +6, +7 |
Atomic Properties
| Electron Configuration | [Ne] 3s2 3p5 |
| Atomic Radius | 79.0 pm |
| Covalent Radius | 102.0 pm |
| Atomic radius: | 175.0 pm |
Discovery
| Discovered By | Carl Wilhelm Scheele |
| Discovery Year | 1774 |
| Location | Uppsala, Sweden |
| Genoemde Na | Greek 'chloros' meaning pale green |
About Chlorine
Chlorine is a yellow-green gas with a pungent odor. It is the third most abundant element in the ocean. Chlorine water treatment has saved countless lives from waterborne diseases. Combined with sodium, it forms table salt.
Gebruiks & Programme
Water purification, PVC plastic production, bleach, disinfectants, hydrochloric acid, and pesticides.
Fun Fact
The introduction of chlorine water treatment in the early 1900s virtually eliminated typhoid and cholera from treated water supplies.
Isotopes
| Definieer Molekulêr Gewigte | Abundance | Half-Life | Stabiel |
| 35 | 0.7576% | - | Ja |
| 37 | 0.2424% | - | Ja |
Electron Configuration
[Ne] 3s2 3p5