Element:As
From Metabolomics.JP
Atomic Number
33
Atomic Name
Arsenic(ヒ素)
Stable Isotopes
| isotope | mass | isotopic abundance (%) |
|---|---|---|
| 75As | 74.9215966 | 100 |
Radioisotopes
| isotope | half life | disintegration form |
|---|---|---|
| 71As | 65.28 hours | beta+, EC |
| 72As | 26.0 hours | beta+, EC |
| 73As | 80.30 days | EC |
| 74As | 17.77 days | EC, beta+. beta- |
| 76As | 26.32 hours | beta- |
| 77As | 38.83 hours | beta- |
