4 ms·
> elements rarer than cerium include copper, nitrogen, lead, tin, tungsten rarer in the sense of % on (in) earth, or % in the crust? I would have thought nitro
by Chris2048 3y ago
> elements rarer than cerium include copper, nitrogen, lead, tin, tungsten
rarer in the sense of % on (in) earth, or % in the crust? I would have thought nitrogen requiring no mining would make it easier to obtain, even if technically rare?
- pfdietz 3y agoNitrogen is not common in the Earth, but is highly enriched in the atmosphere. Similarly, uranium is orders of magnitude more abundant in the continental crust than it is in the rest of the Earth.