Element:Er
From Metabolomics.JP
(Difference between revisions)
Latest revision as of 20:00, 27 February 2008
[edit] Atomic Number
68
[edit] Atomic Name
Erbium(エルビウム)
[edit] Stable Isotopes
| isotope | mass | isotopic abundance (%) |
|---|---|---|
| 162Er | 161.928775 | 0.139(5) |
| 164Er | 163.929197 | 1.601(3) |
| 166Er | 165.930290 | 33.503(36) |
| 167Er | 166.932046 | 22.869(9) |
| 168Er | 167.932368 | 26.978(18) |
| 170Er | 169.935461 | 14.910(36) |
[edit] Radioisotopes
| isotope | half life | disintegration form |
|---|---|---|
| 169Er | 9.40 days | beta- |
| 171Er | 7.516 hours | beta- |
