Lead 207 – 207Pb
What is it?
It is an isotope of lead. Lead is a common metal which is malleable, ductile, grey. Lead has four stable (non-radioactive) isotopes, one of which is Lead-207. Lead-207 represents the end of the actinium series’ decay chain. It is a metallic isotope that is both naturally occurring and can be produced by fission.
What is it used for?
- It may be a critical component of LK-99 (the first room-temperature superconductor).
- Geological dating.
- Building construction.
Why is it special?
- Lead-207 is one of nine naturally occuring lead isotopes, four of which are stable, lead-207 being one of them.
- Lead-207 has a distinct spin from the other three stable isotopes; Lead-207's nuclear spin is 1/2.
Isotopes of Lead
| Main Isotopes | Abundance | Half-life |
|---|---|---|
| 204Pb | 1.40% | Stable |
| 205Pb | Trace | 1.73×10^7 y |
| 206Pb | 24.1% | Stable |
| 207Pb | 22.1% | Stable |
| 208Pb | 52.4% | Stable |
| 209Pb | Trace | 3.253 h |
| 210Pb | Trace | 22.20 y |
| 211Pb | Trace | 36.1 min |
| 212Pb | Trace | 10.64 h |
| 214Pb | Trace | 26.8 min |
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