| Element (Atom) Name | Terbium |
| Symbol | Tb |
| Physical state at room temperature | Solid |
| Element Classification | Metal |
| Group Name | Lanthanide |
| Period Number (Periodic table) | 6 |
| Group number (Periodic table) | None |
| Atomic number | 65 |
| Atomic weight | 158.92535 (Ref: Jlab-ele065, Nist-65) 158.925354 (Ref: ciaaw-terbium) 158.9 (Ref: Lanl-65) |
| Atomic Radius | 221 pm (Van der Waals) (Ref: Lanl-65) |
| Density | 8.23 g/cm3 (Ref: Jlab-ele065) |
| Melting point | 1356°C (Ref: Jlab-ele065, Lanl-65) |
| Boiling point | 3230°C (Ref: Jlab-ele065) 3123 °C (Ref: Lanl-65) |
| Electron shell configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f9 5s2 5p6 6s2 |
| Oxidation States | +3 (Ref: Jlab-ele065) 4, 3, 2, 1 (a weakly basic oxide) (Ref: Lanl-65) |
| Ionization Energy | 5.864 eV (Ref: Jlab-ele065) 5.8638 eV (Ref: Nist-65) |
| Number of Stable Isotopes | 1 |
| InChI | InChI=1S/Tb (Ref: Pubchem-65) |
| InChI Key | GZCRRIHWUXGPOV-UHFFFAOYSA-N (Ref: Pubchem-65) |
| Remarks |
REFERENCES
- Jlab-ele065: https://education.jlab.org/itselemental/ele065.html
- Lanl-65: https://periodic.lanl.gov/65.shtml
- ciaaw-terbium : https://www.ciaaw.org/terbium.htm
- Nist-65: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=65
- Pubchem-65: https://pubchem.ncbi.nlm.nih.gov/element/65
- science.co.il: https://www.science.co.il/elements/
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