Chroom |
| Simbool | Cr |
|---|---|
| Latynse naam | Chromium |
| Atoomgetal | 24 |
| Periode | 4 |
| Element kategorie | Oorgangselemente |
| Relatieve atomiese massa | 51.9961 |
| Groep | VI.B |
| Electronegativiteit | 1.6 |
| Oksidering nommers | 2, 3, 4, 5, 6 |
| Elektronkonfigurasie | 1s2 2s2 2p6 3s2 3p6 3d5 4s1 |
| Digtheid [g/cm3] | 7.19 |
| Staat | Vaste stof |
| Smeltpunt [°C] | 1857 |
| Kookpunt [°C] | 2672 |
| Atoomradius [pm] | 166 |
| Covalent radius [pm] | 127 |
| Termiese geleidingsvermoë [W m-1K-1] | 93.7 |
| Hitte kapasiteit [J K-1g-1] | 0.449 |
| Ontdekking | 1797 |
| Hardheid [Mohs-skaal] | 9.0 |
| Vickers se hardheid [MPa] | 1060 |
| Brinell-hardheid [MPa] | 1120 |
| Young's modulus [GPa] | 279 |
| Elektriese geleiding [S m-1] | 7.9 · 106 |
| Shear modulus [GPa] | 115 |
| 1ste ionisasie-energie [eV] | 6.7666 |
| 2de ionisasie-energie [eV] | 16.5 |
| 3de ionisasie-energie [eV] | 30.96 |
| Stabiele isotope | 4 |
| Onstabiele isotope | 5 |