| Mo | Molybdenum | Atomic number : 42 Relative atomic mass (12C = 12.0000) : 95.94 |
|||||||
| P H Y S I C A L D A T A | |
| Group 6 transition metal Density / kg m-3 : 10 220 [293 K]; 9330 [liquid at m.p.] |
Melting point / K : 2890 Boiling point / K : 4885 |
| D I S C O V E R Y | |
| Isolated in 1781 by P.J. Hjelm at Uppsala, Sweden. |
|
| G E O L O G I C A L D A T A | |
| Abundances Sun (relative to H = 1 × 1012) : 145 Earth's crust / p.p.m. : 1.5 Residence time / years : 600 000 Classification : accumulating Oxidation state : VI |
Seawater / p.p.m. : 0.0100 |
| B I O L O G I C A L D A T A | |
| Level in humans Blood / mg dm-3 : c. 0.001 Bone / p.p.m. : < 0.7 Liver / p.p.m. : 1.3 - 5.8 Muscle / p.p.m. : 0.018 |
Daily dietary intake : 0.05 - 0.35 mg Total mass of element in average (70 kg) person : 5 mg |
 |
A portrait of molybdenum is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |