Nuklida · radioaktif
Kalium-38 (³⁸K)
Kalium-38 (³⁸K) adalah isotop radioaktif kalium dengan 19 proton dan 19 neutron (nomor massa 38). Waktu paruhnya 7,651 menit (± 0,019 menit), meluruh terutama lewat peluruhan beta plus (β⁺).
Data nuklida
- Unsur
- Kalium (K, Z = 19)
- Nomor massa (A)
- 38
- Proton (Z)
- 19
- Neutron (N)
- 19
- Massa atom
- 37.969081114 ± 0.000000209 u
- Waktu paruh
- 7,651 menit (± 0,019 menit)
- Mode peluruhan
- Peluruhan beta plus (β⁺) ( 100 %)
- Inti anak
- Argon-38 (³⁸Ar)
- Tahun penemuan
- 1937
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop kalium
- 38K, which has a half-life of 7.6 min and is produced by a nuclear reaction involving 38Ar and 40Ar as targets, is a widely used blood-flow tracer. Because 38Ar is more expensive, 40Ar, which also offers many additional advantages as a target, is more commonly used to produce 38K for medical purposes,,.
Isotop kalium lainnya
³¹K, ³²K, ³³K, ³⁴K, ³⁵K, ³⁶K, ³⁷K, ³⁹K, ⁴⁰K, ⁴¹K, ⁴²K, ⁴³K, ⁴⁴K, ⁴⁵K, ⁴⁶K, ⁴⁷K, ⁴⁸K, ⁴⁹K, ⁵⁰K, ⁵¹K, ⁵²K, ⁵³K, ⁵⁴K, ⁵⁵K, ⁵⁶K, ⁵⁷K, ⁵⁸K, ⁵⁹K