A portrait of nitrogen is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements.
| N | Nitrogen |
Atomic number : 7
Relative atomic mass (12C = 12.0000) : 14.00674 |
|||||||
| P H Y S I C A L D A T A | |
|
Group 15 non-metal Density / kg m-3 : 1026 [s., 21 K]; 880 [liq., b.p.]; 1.2506 [gas, 273K] |
Melting point / K : 63.29 Boiling point / K : 77.4 |
| D I S C O V E R Y | |
|
Discovered by D. Rutherford in 1772 at Edinburgh, Scotland. |
|
| G E O L O G I C A L D A T A | |
|
Abundances Sun (relative to H = 1 × 1012) : 8.71 × 107 Earth's crust / p.p.m. : 25 Atmosphere / p.p.m. (volume) : 780 900 Residence time / years : 6000 Classification : recycled Oxidation state : V |
Seawater / p.p.m. : Atlantic surface : 0.00008 Atlantic deep : 0.27 Pacific surface : 0.0008 Pacific deep : 0.54 |
| B I O L O G I C A L D A T A | |
|
Level in humans Blood / mg dm-3 : 34 300 Bone / p.p.m. : 43 000 Liver / p.p.m. : 72 000 Muscle / p.p.m. : 72 000 |
Daily dietary intake : n.a., but high Total mass of element in average (70 kg) person : 1.8 kg |
|
|
A portrait of nitrogen is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |