| Element (Atom) Name | Zirconium |
| Symbol | Zr |
| Physical state at room temperature | Solid |
| Element Classification | Metal |
| Group Name | None |
| Period Number (Periodic table) | 5 |
| Group number (Periodic table) | 4 |
| Atomic number | 40 |
| Atomic weight | 91.224 (Ref: Jlab-ele040, ciaaw-zirconium, Nist-40) 91.22 (Ref: Lanl-40) |
| Atomic Radius | 186 pm (Van der Waals) (Ref: Lanl-40) |
| Density | 6.52 g/cm3 (Ref: Jlab-ele040) |
| Melting point | 1855°C (Ref: Jlab-ele040, Lanl-40) |
| Boiling point | 4409°C (Ref: Jlab-ele040) 4377 °C (Ref: Lanl-40) |
| Electron shell configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d2 5s2 |
| Oxidation States | +4 (Ref: Jlab-ele040) 4, 3, 2, 1, −2 (an amphoteric oxide) (Ref: Lanl-40) |
| Ionization Energy | 6.634 eV (Ref: Jlab-ele040) 6.634126 eV (Ref: Nist-40) |
| Number of Stable Isotopes | 4 |
| InChI | InChI=1S/Zr (Ref: Pubchem-40) |
| InChI Key | QCWXUUIWCKQGHC-UHFFFAOYSA-N (Ref: Pubchem-40) |
| Remarks |
REFERENCES
- Jlab-ele040: https://education.jlab.org/itselemental/ele040.html
- Lanl-40: https://periodic.lanl.gov/40.shtml
- ciaaw-zirconium: https://www.ciaaw.org/zirconium.htm
- Nist-40 : https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=40
- Pubchem-40: https://pubchem.ncbi.nlm.nih.gov/element/40
- science.co.il: https://www.science.co.il/elements/
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