Description & History
ura·ni·um (circa 1797):
a silvery heavy radioactive polyvalent metallic element that is found especially in pitchblende and uraninite and exists naturally as a mixture of three isotopes of mass number 234, 235, and 238 in the proportions of 0.006 percent, 0.71 percent, and 99.28 percent respectively
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|
Element
| Symbol | U |
| Z | 92 |
| Atomic Weight | 238.070007 |
|---|
| Density | 19.0499992 |
|
Edge Energies
(keV)
| K | 115.602997 |
|---|
| L1 | 21.7560005 |
|---|
| L2 | 20.9470005 |
|---|
| L3 | 17.1669998 |
|---|
| M | 5.54899979 |
|---|
| K-alpha | 98.4280014 |
|---|
| K-beta | 111.289001 |
|---|
| L-alpha | 13.6129999 |
|---|
| L-beta | 17.2180004 |
|---|
|
Edge jumps
| K | INF |
|---|
| L1 | NAN |
|---|
| L2 | 1.40999997 |
|---|
| L3 | 2.29200006 |
|---|
|
Fluorescence
yield
| K | 0.972000003 |
|---|
| L1 | 0.175999999 |
|---|
| L2 | 5.54899979 |
|---|
| L3 | 98.4280014 |
|---|
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