Nuklida · stabil · alami
Selenium-78 (⁷⁸Se)
Selenium-78 (⁷⁸Se) adalah isotop stabil selenium dengan 34 proton dan 44 neutron (nomor massa 78). Kelimpahan alaminya 0.2369(22).
Data nuklida
- Nomor massa (A)
- 78
- Proton (Z)
- 34
- Neutron (N)
- 44
- Massa atom
- 77.917309244 ± 0.000000191 u
- Waktu paruh
- Stabil
- Mode peluruhan
- Tidak meluruh
- Kelimpahan alami
- 0.2369(22)
- Tahun penemuan
- 1922
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop selenium
- 77Se and 78Se are used to produce the therapeutic radioisotope 77Br via the 77Se (n, p) 77Br and the 78Se (n, 2p) 77Br reactions, respectively. 80Se is used to produce 80mBr via the reaction 80Se (n, p) 80mBr. The m the superscript of 80mBr indicates a metastable state of the isotope.
Isotop selenium lainnya
⁶³Se, ⁶⁴Se, ⁶⁵Se, ⁶⁶Se, ⁶⁷Se, ⁶⁸Se, ⁶⁹Se, ⁷⁰Se, ⁷¹Se, ⁷²Se, ⁷³Se, ⁷⁴Se, ⁷⁵Se, ⁷⁶Se, ⁷⁷Se, ⁷⁹Se, ⁸⁰Se, ⁸¹Se, ⁸²Se, ⁸³Se, ⁸⁴Se, ⁸⁵Se, ⁸⁶Se, ⁸⁷Se, ⁸⁸Se, ⁸⁹Se, ⁹⁰Se, ⁹¹Se, ⁹²Se, ⁹³Se, ⁹⁴Se, ⁹⁵Se