Elements / 24
24Cr51.996
Chromium
Transition metal · d-block · ring N · spoke 6
Chromium is element 24, a transition metal. It sits on ring N (period 4) on spoke 6. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 7.19 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 2,180 K · 1,907 °C | Terrain → |
| Boiling point | 2,944 K · 2,671 °C | Terrain → |
| Electronegativity | 1.66 | Terrain → |
| First ionization energy | 653 kJ/mol | Terrain → |
| Atomic weight | 51.9962 u | Terrain → |
| Crustal abundance | 102 ppm | Terrain → |
| Discovered | 1797 | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- Vauquelin found its oxide in 1797 in Siberian red lead, then showed it is what makes a Peruvian emerald green.
- Its name comes from the Greek word for colour, chosen for the many differently coloured compounds it forms.
Checked against webelements.co.uk.
Spoke 6
Ring N (period 4)
Play with Chromium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.