Description & History
|
Under normal conditions krypton is colourless, odourless, fairly expensive gas. Solid krypton is a white crystalline substance with a face-centered cubic structure which is common to all the "rare gases".
Krypton is present in the air at about 1 ppm. The atmosphere of Mars contains a little (about 0.3 ppm) of krypton. It is characterised by its brilliant green and orange spectral lines.
|
|
Element
| Symbol | Kr |
| Z | 36 |
| Atomic Weight | 83.8000031 |
|---|
| Density | 0.00374000007 |
|
Edge Energies
(keV)
| K | 14.3219995 |
|---|
| L1 | 1.91999996 |
|---|
| L2 | 1.72599995 |
|---|
| L3 | 1.67499995 |
|---|
| M | 0.287999988 |
|---|
| K-alpha | 12.6479998 |
|---|
| K-beta | 14.1120005 |
|---|
| L-alpha | 1.58700001 |
|---|
| L-beta | 1.63800001 |
|---|
|
Edge jumps
| K | 7.04139614 |
|---|
| L1 | 1.1584667 |
|---|
| L2 | 1.40999997 |
|---|
| L3 | 4.17000008 |
|---|
|
Fluorescence
yield
| K | 0.643000007 |
|---|
| L1 | 0.00410000002 |
|---|
| L2 | 0.287999988 |
|---|
| L3 | 12.6479998 |
|---|
|
