Tellurium vs Iodine
| Property | Te Tellurium | I Iodine |
|---|---|---|
| Atomic number | 52 | 53 |
| Symbol | Te | I |
| Name | Tellurium | Iodine |
| Category | metalloid | halogen |
| Standard Atomic Weight | 127.6 u | 126.90447 u |
| Period | 5 | 5 |
| Group | 16 | 17 |
| Block | p | p |
| Phase at STP | solid | solid |
| Electron configuration | [Kr]5s24d105p4 | [Kr]5s24d105p5 |
| Oxidation states | [-2, -1, 0, 1, 2, 3, 4, 5, 6] | [-1, 1, 2, 3, 4, 5, 6, 7] |
| Electronegativity (Pauling) | 2.1 | 2.66 |
| Electron affinity | 1.9708 eV | 3.059 eV |
| Density | 6232 kg/m³ | 4930 kg/m³ |
| Melting point | 449.51 °C | 113.7 °C |
| Boiling point | 987.85 °C | 184.4 °C |
| Discovery year | 1782 | 1811 |