| Element (Atom) Name | Tantalum |
| Symbol | Ta |
| Physical state at room temperature | Solid |
| Element Classification | Metal |
| Group Name | None |
| Period Number (Periodic table) | 6 |
| Group number (Periodic table) | 5 |
| Atomic number | 73 |
| Atomic weight | 180.94788 (Ref: Jlab-ele073, ciaaw-tantalum, Nist-73) 180.9 (Ref: Lanl-73) |
| Atomic Radius | 217 pm (Van der Waals) (Ref: Lanl-73) |
| Density | 16.4 g/cm3 (Ref: Jlab-ele073) |
| Melting point | 3017°C (Ref: Jlab-ele073, Lanl-73) |
| Boiling point | 5458°C (Ref: Jlab-ele073, Lanl-73) |
| Electron shell configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d3 6s2 |
| Oxidation States | +5 (Ref: Jlab-ele073) 5, 4, 3, 2, 1, −1, −3 (a mildly acidic oxide) (Ref: Lanl-73) |
| Ionization Energy | 7.89 eV (Ref: Jlab-ele073) 7.549571 eV (Ref: Nist-73) |
| Number of Stable Isotopes | 1 |
| InChI | InChI=1S/Ta (Ref: Pubchem-73) |
| InChI Key | GUVRBAGPIYLISA-UHFFFAOYSA-N (Ref: Pubchem-73) |
| Remarks |
REFERENCES
- Jlab-ele073: https://education.jlab.org/itselemental/ele073.html
- Lanl-73: https://periodic.lanl.gov/73.shtml
- ciaaw-tantalum: https://www.ciaaw.org/tantalum.htm
- Nist-73: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=73
- Pubchem-73: https://pubchem.ncbi.nlm.nih.gov/element/73
- science.co.il: https://www.science.co.il/elements/
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