Nuklida · radioaktif
Belerang-35 (³⁵S)
Belerang-35 (³⁵S) adalah isotop radioaktif belerang dengan 16 proton dan 19 neutron (nomor massa 35). Waktu paruhnya 87,37 hari (± 0,04 hari), meluruh terutama lewat peluruhan beta minus (β⁻).
Data nuklida
- Unsur
- Belerang (S, Z = 16)
- Nomor massa (A)
- 35
- Proton (Z)
- 16
- Neutron (N)
- 19
- Massa atom
- 34.969032321 ± 0.000000043 u
- Waktu paruh
- 87,37 hari (± 0,04 hari)
- Mode peluruhan
- Peluruhan beta minus (β⁻) ( 100 %)
- Inti anak
- Klorin-35 (³⁵Cl)
- Tahun penemuan
- 1936
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop belerang
- 35S has a half-life of 87 days, which is an ideal duration for use as a conservative tracer in atmospheric processes. 35SO2 gas is produced as a natural product of argon exposure to cosmic rays in the atmosphere. Because 35SO2 gas is present in the atmosphere and then precipitates and falls as moisture in the form of 35SO4 2-, 35S can act as a tracer to study air mass transport dynamics and atmospheric oxidation capacity. Analyses of 35S in lake water and precipitation can also be used as a tracer to monitor contributions of sulfur that originated in precipitation to surface waters. If a water tests positive for the isotope 35S, it provides evidence that the water had been affected by recent (<~1 year) precipitation,,. 35S is used in direct labeling of elemental sulfur or sulfate sources to trace the fate of sulfur in fertilizers.
Isotop belerang lainnya
²⁶S, ²⁷S, ²⁸S, ²⁹S, ³⁰S, ³¹S, ³²S, ³³S, ³⁴S, ³⁶S, ³⁷S, ³⁸S, ³⁹S, ⁴⁰S, ⁴¹S, ⁴²S, ⁴³S, ⁴⁴S, ⁴⁵S, ⁴⁶S, ⁴⁷S, ⁴⁸S, ⁴⁹S