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Chlorine
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| Atomic Number: |
17 |
| Atomic Weight: |
35.4527 |
| Element Type: |
Halogen |
| Crystal Structure: |
Orthorhombic |
| Melting Point: |
-101.5°C = -150.7°F = 171.65 K |
| Boiling Point: |
-34.04°C = -29.272°F = 239.11 K |
| Critical Temp: |
143.8°C = 290.84°F = 416.95 K |
| Atomic Radius: |
0.97 Å (Å = Angstrom = 10-10 m) |
| Covalent Radius: |
0.99 Å |
| Electronegativity: |
3.16 |
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History
(Gr. chloros, greenish yellow) Discovered in 1774 by Scheele, who thought it containedoxygen. Chlorine was named in 1810 by Davy, who insisted it was an element.
Sources
In nature it is found in the combined state only, chiefly with sodium as common salt(NaCl), carnallite, and sylvite.
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