Elements / 42
42Mo95.95
Molybdenum
Transition metal · d-block · ring O · spoke 6
Molybdenum is element 42, a transition metal. It sits on ring O (period 5) on spoke 6. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 10.3 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 2,896 K · 2,623 °C5th highest melting point of 97 | Terrain → |
| Boiling point | 4,912 K · 4,639 °C7th highest boiling point of 96 | Terrain → |
| Electronegativity | 2.16 | Terrain → |
| First ionization energy | 684 kJ/mol | Terrain → |
| Atomic weight | 95.951 u | Terrain → |
| Crustal abundance | 1.2 ppm | Terrain → |
| Discovered | 1778 | 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
- Reportedly alloyed on purpose into one 14th-century Japanese sword; its ore was long confused with graphite and often used as such.
- Its name comes from the Greek for lead; about 80% of world output goes into steel alloys, and most nitrogenases depend on it.
Checked against en.wikipedia.org.
Spoke 6
Ring O (period 5)
Play with Molybdenum
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.