Element:Hf
From Metabolomics.JP
Atomic Number
72
Atomic Name
Hafnium(ハフニウム)
Stable Isotopes
| isotope | mass | isotopic abundance (%) |
|---|---|---|
| 174Hf | 173.940042 | 0.16(1) = (Natural radioactivity isotope) |
| 176Hf | 175.941403 | 5.26(7) |
| 177Hf | 176.9432204 | 18.60(9) |
| 178Hf | 177.9436981 | 27.28(7) |
| 179Hf | 178.9458154 | 13.62(2) |
| 180Hf | 179.9465488 | 35.08(16) |
Radioisotopes
| isotope | half life | disintegration form |
|---|---|---|
| 175Hf | 70 days | EC |
| 180mHf | 5.5 hours | IT, beta- |
| 181Hf | 42.39 days | beta- |
