Nuklida · radioaktif
Timbal-209 (²⁰⁹Pb)
Timbal-209 (²⁰⁹Pb) adalah isotop radioaktif timbal dengan 82 proton dan 127 neutron (nomor massa 209). Waktu paruhnya 3,235 jam (± 0,005 jam), meluruh terutama lewat peluruhan beta minus (β⁻).
Data nuklida
- Unsur
- Timbal (Pb, Z = 82)
- Nomor massa (A)
- 209
- Proton (Z)
- 82
- Neutron (N)
- 127
- Massa atom
- 208.981089978 ± 0.000001875 u
- Waktu paruh
- 3,235 jam (± 0,005 jam)
- Mode peluruhan
- Peluruhan beta minus (β⁻) ( 100 %)
- Inti anak
- Bismut-209 (²⁰⁹Bi)
- Tahun penemuan
- 1940
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Isotop timbal lainnya
¹⁷⁸Pb, ¹⁷⁹Pb, ¹⁸⁰Pb, ¹⁸¹Pb, ¹⁸²Pb, ¹⁸³Pb, ¹⁸⁴Pb, ¹⁸⁵Pb, ¹⁸⁶Pb, ¹⁸⁷Pb, ¹⁸⁸Pb, ¹⁸⁹Pb, ¹⁹⁰Pb, ¹⁹¹Pb, ¹⁹²Pb, ¹⁹³Pb, ¹⁹⁴Pb, ¹⁹⁵Pb, ¹⁹⁶Pb, ¹⁹⁷Pb, ¹⁹⁸Pb, ¹⁹⁹Pb, ²⁰⁰Pb, ²⁰¹Pb, ²⁰²Pb, ²⁰³Pb, ²⁰⁴Pb, ²⁰⁵Pb, ²⁰⁶Pb, ²⁰⁷Pb, ²⁰⁸Pb, ²¹⁰Pb, ²¹¹Pb, ²¹²Pb, ²¹³Pb, ²¹⁴Pb, ²¹⁵Pb, ²¹⁶Pb, ²¹⁷Pb, ²¹⁸Pb, ²¹⁹Pb, ²²⁰Pb