Terbium
| Latin name | Terbium |
| English name | Terbium |
| chemical symbol | Tb |
| atomic number | 65 |
| relative atomic mass | 158,92534 |
| period | 6 |
| group | III.B |
| classification | lanthanides |
| discovery year | 1843 |
| discoverer | Carl Mosander |
| melting point [°C] | 1356 |
| boiling point [°C] | 3230 |
| density [g cm-3] | 8,253 |
| density at melting point [g cm-3] | 7,65 |
| electronegativity [Pauling] | 1,2 |
| oxidation states | III, IV |
| electron configuration | [Xe]4f9 6s2 |
| atomic radius [pm] | 225 |
| specific heat [J g-1K-1] | 0,18 |
| heat of fusion [kJ mol-1] | 10,8 |
| thermal conductivity [W m-1 K-1] | 11 |
| el. conductivity [S m-1] | 8,3.105 |
| 1. ionizing potential [eV] | 5,8639 |
| 2. ionizing potential [eV] | 11,525 |
| 3. ionizing potential [eV] | 21,91 |
| Vickers hardness [MPa] | 863 |
| Brinell hardness [MPa] | 677 |
| shear modulus [GPa] | 22 |
| Young's modulus [GPa] | 56 |
| Curie point [K] | 222 |
| state at normal conditions | solid |
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