Nuklida · radioaktif
Selenium-75 (⁷⁵Se)
Selenium-75 (⁷⁵Se) adalah isotop radioaktif selenium dengan 34 proton dan 41 neutron (nomor massa 75). Waktu paruhnya 119,78 hari (± 0,03 hari), meluruh terutama lewat penangkapan elektron (ε).
Data nuklida
- Nomor massa (A)
- 75
- Proton (Z)
- 34
- Neutron (N)
- 41
- Massa atom
- 74.922522870 ± 0.000000078 u
- Waktu paruh
- 119,78 hari (± 0,03 hari)
- Mode peluruhan
- Penangkapan elektron (ε) ( 100 %)
- Inti anak
- Arsen-75 (⁷⁵As)
- Tahun penemuan
- 1947
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop selenium
- 75Se (with a half-life of 120 days) is used for X-ray radiography of welds to visualize welds and ensure that each weld is appropriate for its purpose.
- 75Se-selenomethionine (organic compound that combines to form proteins, found in Brazil nuts and soybeans) has been used to study the production of digestive enzymes (biological catalysts that accelerates chemical reactions). Selenium stable isotopes are used in metabolic studies to monitor selenium intake and output,.
Isotop selenium lainnya
⁶³Se, ⁶⁴Se, ⁶⁵Se, ⁶⁶Se, ⁶⁷Se, ⁶⁸Se, ⁶⁹Se, ⁷⁰Se, ⁷¹Se, ⁷²Se, ⁷³Se, ⁷⁴Se, ⁷⁶Se, ⁷⁷Se, ⁷⁸Se, ⁷⁹Se, ⁸⁰Se, ⁸¹Se, ⁸²Se, ⁸³Se, ⁸⁴Se, ⁸⁵Se, ⁸⁶Se, ⁸⁷Se, ⁸⁸Se, ⁸⁹Se, ⁹⁰Se, ⁹¹Se, ⁹²Se, ⁹³Se, ⁹⁴Se, ⁹⁵Se