| Element (Atom) Name | Chromium |
| Symbol | Cr |
| Physical state at room temperature | Solid |
| Element Classification | Metal |
| Group Name | None |
| Period Number (Periodic table) | 4 |
| Group number (Periodic table) | 6 |
| Atomic number | 24 |
| Atomic weight | 51.9961 (Ref: Jlab-ele024, ciaaw-chromium, Nist-24) 52 (Ref: Lanl-24) |
| Atomic Radius | 189 pm (Van der Waals) (Ref: Lanl-24) |
| Density | 7.15 g/cm3 (Ref: Jlab-ele024) |
| Melting point | 1907°C (Ref: Jlab-ele024, Lanl-24) |
| Boiling point | 2671°C (Ref: Jlab-ele024, Lanl-24) |
| Electron shell configuration | 1s2 2s2 2p6 3s2 3p6 3d5 4s1 |
| Oxidation States | +6, +3, +2 (Ref: Jlab-ele024) 6, 5, 4, 3, 2, 1, −1, −2, −4 (depending on the oxidation state, an acidic, basic, or amphoteric oxide) (Ref: Lanl-24) |
| Ionization Energy | 6.767 eV (Ref: Jlab-ele024) 6.76651 eV (Ref: Nist-24) |
| Number of Stable Isotopes | 3 |
| InChI | InChI=1S/Cr (Ref: Pubchem-24) |
| InChI Key | VYZAMTAEIAYCRO-UHFFFAOYSA-N (Ref: Pubchem-24) |
| Remarks |
REFERENCES
- Jlab-ele024: https://education.jlab.org/itselemental/ele024.html
- Lanl-24: https://periodic.lanl.gov/24.shtml
- ciaaw-chromium : https://www.ciaaw.org/chromium.htm
- Nist-24 : https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=24
- Pubchem-24: https://pubchem.ncbi.nlm.nih.gov/element/24
- science.co.il: https://www.science.co.il/elements/
1 thought on “Element: Chromium (Cr)”