| This
chart to the right represents how much neon is present in the
environment. |
|
Biological
role
|
None;
non toxic but can asphyxiate
|
| Levels
in humans |
n.a.,
but very low |
|
Abundances
|
| Sun
(relative to H=1×1012) |
Species |
| Earth's
crust/p.p.m. |
7×10-5 |
| Sea
water/p.p.m. |
2×10-4 |
| Residence
time/years |
n.a. |
| Oxidation
state |
0 |
| Atmosphere/p.p.m.(volume) |
18 |
| Composition
of dry air |
0.0018% |
|
|
Geological
Data
|
| Chief
source |
liquid
water |
| World
production/tonnes-1 |
c.1 |
| Reserves/tonnes |
6.51010
(atmosphere) |
|
|
