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Iodine
Iodine is a chemical element. The name is from Greek ἰοειδής ioeidēs, meaning violet or purple, due to the color of elemental iodine vapor.(Wiki)
| Name | Iodine |
| Atomic Number | 53 |
| Atomic Weight | 126.90447 |
| Symbol | I |
| Melting Point ( °C ) | 113.7 °C |
| Boiling Point ( °C ) | 184.3 °C |
| Density (g/cm3) | 4.933 |
| Earth crust (%) | 0.490 |
| Discovery (Year) | 1811 |
| Group | 17 |
| Electron configuration | Kr 4d10 5s2 5p5 |
| Ionization energy (eV) | 1008.4 |
Discovery
Iodine was discovered by Bernard Courtois in 1811.
References
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