Nuklida · stabil · alami
Bromin-81 (⁸¹Br)
Bromin-81 (⁸¹Br) adalah isotop stabil bromin dengan 35 proton dan 46 neutron (nomor massa 81). Kelimpahan alaminya [0.492, 0.495].
Data nuklida
- Unsur
- Bromin (Br, Z = 35)
- Nomor massa (A)
- 81
- Proton (Z)
- 35
- Neutron (N)
- 46
- Massa atom
- 80.916288197 ± 0.000001049 u
- Waktu paruh
- Stabil
- Mode peluruhan
- Tidak meluruh
- Kelimpahan alami
- [0.492, 0.495]
- Tahun penemuan
- 1920
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop bromin
- Molecules, atoms, and ions of the stable isotopes of bromine possess slightly different physical and chemical properties, and they commonly will be fractionated during physical, chemical, and biological processes, giving rise to variations in isotopic abundances and in atomic weights. There are substantial variations in the isotopic abundances of bromine in natural terrestrial materials (Fig. IUPAC.35.1). These variations are useful in investigating the origin of substances and studying environmental, hydrological, and geological processes,. 79Br has been used as a groundwater tracer (Fig. IUPAC.35.2). Introduction of a solution spiked with 79Br to groundwater and measurement of the change in the isotope-amount ratio n(79Br)/n(81Br) over time has been used to monitor tracer breakthrough and to calculate bromide travel time.
Isotop bromin lainnya
⁶⁵Br, ⁶⁶Br, ⁶⁷Br, ⁶⁸Br, ⁶⁹Br, ⁷⁰Br, ⁷¹Br, ⁷²Br, ⁷³Br, ⁷⁴Br, ⁷⁵Br, ⁷⁶Br, ⁷⁷Br, ⁷⁸Br, ⁷⁹Br, ⁸⁰Br, ⁸²Br, ⁸³Br, ⁸⁴Br, ⁸⁵Br, ⁸⁶Br, ⁸⁷Br, ⁸⁸Br, ⁸⁹Br, ⁹⁰Br, ⁹¹Br, ⁹²Br, ⁹³Br, ⁹⁴Br, ⁹⁵Br, ⁹⁶Br, ⁹⁷Br, ⁹⁸Br