Nuklida · radioaktif
Iodin-125 (¹²⁵I)
Iodin-125 (¹²⁵I) adalah isotop radioaktif iodin dengan 53 proton dan 72 neutron (nomor massa 125). Waktu paruhnya 59,392 hari (± 0,008 hari), meluruh terutama lewat penangkapan elektron (ε).
Data nuklida
- Unsur
- Iodin (I, Z = 53)
- Nomor massa (A)
- 125
- Proton (Z)
- 53
- Neutron (N)
- 72
- Massa atom
- 124.904630610 ± 0.000001452 u
- Waktu paruh
- 59,392 hari (± 0,008 hari)
- Mode peluruhan
- Penangkapan elektron (ε) ( 100 %)
- Inti anak
- Telurium-125 (¹²⁵Te)
- Tahun penemuan
- 1947
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop iodin
- 125I, which has a half-life of about 59 days, is used encapsulated in radiotherapy to target and treat sites of cancerous tumors. 120gI (with a half-life of 1.36 h), where the “g” indicates ground state, and 124I (with a half-life of 100 h) are radioactive isotopes that emit positrons and they are used in quantitative, diagnostic imaging of the body using positron emission tomography (PET),,,,,. 123I and 131I (with half-lives of 0.55 day and 8 days, respectively) are used with single-photon emission computed spectroscopy (SPECT) for basic three-dimensional imaging,. Radioactive iodine isotopes are produced from radioactive tellurium isotope.
Isotop iodin lainnya
¹⁰⁶I, ¹⁰⁷I, ¹⁰⁸I, ¹⁰⁹I, ¹¹⁰I, ¹¹¹I, ¹¹²I, ¹¹³I, ¹¹⁴I, ¹¹⁵I, ¹¹⁶I, ¹¹⁷I, ¹¹⁸I, ¹¹⁹I, ¹²⁰I, ¹²¹I, ¹²²I, ¹²³I, ¹²⁴I, ¹²⁶I, ¹²⁷I, ¹²⁸I, ¹²⁹I, ¹³⁰I, ¹³¹I, ¹³²I, ¹³³I, ¹³⁴I, ¹³⁵I, ¹³⁶I, ¹³⁷I, ¹³⁸I, ¹³⁹I, ¹⁴⁰I, ¹⁴¹I, ¹⁴²I, ¹⁴³I, ¹⁴⁴I, ¹⁴⁵I, ¹⁴⁶I, ¹⁴⁷I