Nuklida · radioaktif
Prometium-139 (¹³⁹Pm)
Prometium-139 (¹³⁹Pm) adalah isotop radioaktif prometium dengan 61 proton dan 78 neutron (nomor massa 139). Waktu paruhnya 4,15 menit (± 0,05 menit), meluruh terutama lewat peluruhan beta plus (β⁺).
Data nuklida
- Nomor massa (A)
- 139
- Proton (Z)
- 61
- Neutron (N)
- 78
- Massa atom
- 138.916799228 ± 0.000014587 u
- Waktu paruh
- 4,15 menit (± 0,05 menit)
- Mode peluruhan
- Peluruhan beta plus (β⁺) ( 100 %)
- Inti anak
- Neodimium-139 (¹³⁹Nd)
- Tahun penemuan
- 1967
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Isotop prometium lainnya
¹²⁶Pm, ¹²⁷Pm, ¹²⁸Pm, ¹²⁹Pm, ¹³⁰Pm, ¹³¹Pm, ¹³²Pm, ¹³³Pm, ¹³⁴Pm, ¹³⁵Pm, ¹³⁶Pm, ¹³⁷Pm, ¹³⁸Pm, ¹⁴⁰Pm, ¹⁴¹Pm, ¹⁴²Pm, ¹⁴³Pm, ¹⁴⁴Pm, ¹⁴⁵Pm, ¹⁴⁶Pm, ¹⁴⁷Pm, ¹⁴⁸Pm, ¹⁴⁹Pm, ¹⁵⁰Pm, ¹⁵¹Pm, ¹⁵²Pm, ¹⁵³Pm, ¹⁵⁴Pm, ¹⁵⁵Pm, ¹⁵⁶Pm, ¹⁵⁷Pm, ¹⁵⁸Pm, ¹⁵⁹Pm, ¹⁶⁰Pm, ¹⁶¹Pm, ¹⁶²Pm, ¹⁶³Pm, ¹⁶⁴Pm, ¹⁶⁵Pm