iv : CHROMIUM DATA SHEET
| ELEMENT NAME | Chromium | ORIGIN | Chroma (Greek - colour) |
| ELEMENT TYPE | 1st row Transition metal | STRUCTURE | Cubic body centred |
| DISCOVERED BY | Louis Vauquelin | LOCATION | France |
| YEAR DISCOVERED | 1797 | ||
| ATOMIC NUMBER | 24 | ATOMIC WEIGHT | 51.996 |
| SHELLS | 2,8,13,1 | FILLING ORBITAL | 3d5 |
| MELTING POINT | 1857 °C | BOILING POINT | 2672 °C |
| COVALENT RADIUS | 1.18Å | ATOMIC RADIUS | 1.85Å |
| ATOMIC VOLUME | 7.23cm3 | ||
| ELECTRONEGATIVITY | 1.66 | OXIDATION STATES | 6, 3, 2 |
| 1st IONISATION | 6.766V | 2nd IONISATION | 16.50V |
| 3rd IONISATION | 30.96V | ||
| DENSITY (@ 293K) | 7.19g cm-3 | SPECIFIC HEAT | 0.45 J g-1 K |
| HEAT VAPORISATION | 344.30 kJ mol-1 | HEAT OF FUSION | 16.90 kJ mol-1 |
| ELEC CONDUCTIVITY | 0.0774x106 cm-1 W-1 | THERMAL COND | 0.937 W cm-1 K-1 |
SOURCES : Does not occur freely in nature. Chromite [Fe, Mg(CrO4)] is it's most important mineral.
USES : Used to make stainless steel. It gives colour to rubies and emeralds.
ELEMENT NUCLIDES :
| Nuclide | Abundance (%) | Weight | Spin | Half life | Decay modes |
| 49Cr | 0 | 49 | 2.5 | 42.3m | b+ |
| 50Cr | 4.31 | 49.946 | 0 | Stable | |
| 51Cr | 0 | 50.945 | 7 | 27.70 days | g |
| 52Cr | 83.76 | 51.9405 | 0 | Stable | |
| 53Cr | 9.55 | 52.9407 | 1.5 | Stable | |
| 54Cr | 2.38 | 53.9389 | 0 | Stable |
Data taken from "Periodic Data Sheets" - A C3 computer program.