¹¹⁹Ce — Unstable · t½ ≈ 9 s · Decay: β⁺ → ¹¹⁹La · Type: synthetic · Uses: research.
¹²⁰Ce — Unstable · t½ ≈ 47 s · Decay: β⁺ → ¹²⁰La · Type: synthetic · Uses: research.
¹²¹Ce — Unstable · t½ ≈ 4.9 s · Decay: β⁺ → ¹²¹La · Type: synthetic · Uses: research.
¹²²Ce — Unstable · t½ ≈ 3.7 s · Decay: β⁺ → ¹²²La · Type: synthetic · Uses: research.
¹²³Ce — Unstable · t½ ≈ 5.9 s · Decay: β⁺ → ¹²³La · Type: synthetic · Uses: research.
¹²⁴Ce — Unstable · t½ ≈ 8.0 s · Decay: β⁺ → ¹²⁴La · Type: synthetic · Uses: research.
¹²⁵Ce — Unstable · t½ ≈ 9.0 s · Decay: β⁺ → ¹²⁵La · Type: synthetic · Uses: research.
¹²⁶Ce — Unstable · t½ ≈ 12.0 s · Decay: β⁺ → ¹²⁶La · Type: synthetic · Uses: research.
¹²⁷Ce — Unstable · t½ ≈ 19.0 s · Decay: β⁺ → ¹²⁷La · Type: synthetic · Uses: research.
¹²⁸Ce — Unstable · t½ ≈ 3.5 min · Decay: β⁺ → ¹²⁸La · Type: synthetic · Uses: research.
¹²⁹Ce — Unstable · t½ ≈ 3.5 min · Decay: β⁺ → ¹²⁹La · Type: synthetic · Uses: research.
¹³⁰Ce — Unstable · t½ ≈ 29.7 min · Decay: β⁺ → ¹³⁰La · Type: synthetic · Uses: research.
¹³¹Ce — Unstable · t½ ≈ 10.0 min · Decay: β⁺ → ¹³¹La · Type: synthetic · Uses: research.
¹³²Ce — Unstable · t½ ≈ 3.5 h · Decay: β⁺ → ¹³²La · Type: synthetic · Uses: research.
¹³³Ce — Unstable · t½ ≈ 97 min · Decay: β⁺ → ¹³³La · Type: synthetic · Uses: research.
¹³⁴Ce — Unstable · t½ ≈ 75.9 h · Decay: β⁻ → ¹³⁴Pr · Type: activation product · Uses: tracer.
¹³⁵Ce — Unstable · t½ ≈ 17.7 h · Decay: β⁻ → ¹³⁵Pr · Type: activation · Uses: tracer.
¹³⁶Ce — Unstable · t½ ≈ 3.0×10¹⁹ y · Decay: double β⁻ → ¹³⁶Ba · Type: primordial extremely long-lived · Uses: double-β decay studies.
¹³⁷Ce — Unstable · t½ ≈ 9.0 h · Decay: β⁻ → ¹³⁷Pr · Type: activation product · Uses: tracer.
¹³⁸Ce — Stable · — · Type: stable (primordial) · Uses: tracer, alloys.
¹³⁹Ce — Unstable · t½ ≈ 137.6 d · Decay: β⁻ → ¹³⁹Pr · Type: fission product · Uses: reactor monitoring.
¹⁴⁰Ce — Stable · — · Type: stable (primordial, most abundant) · Uses: alloys, isotope tracer.
¹⁴¹Ce — Unstable · t½ ≈ 32.5 d · Decay: β⁻ → ¹⁴¹Pr · Type: fission product · Uses: environmental monitoring.
¹⁴²Ce — Stable · — · Type: stable (primordial) · Uses: isotope tracer.
¹⁴³Ce — Unstable · t½ ≈ 33 h · Decay: β⁻ → ¹⁴³Pr · Type: activation product · Uses: tracer.
¹⁴⁴Ce — Unstable · t½ ≈ 284.9 d · Decay: β⁻ → ¹⁴⁴Pr → ¹⁴⁴Nd · Type: fission product · Uses: nuclear waste studies.
¹⁴⁵Ce — Unstable · t½ ≈ 3.0 min · Decay: β⁻ → ¹⁴⁵Pr · Type: synthetic · Uses: research.
¹⁴⁶Ce — Unstable · t½ ≈ 13.5 min · Decay: β⁻ → ¹⁴⁶Pr · Type: synthetic · Uses: research.
¹⁴⁷Ce — Unstable · t½ ≈ 56 s · Decay: β⁻ → ¹⁴⁷Pr · Type: synthetic · Uses: research.
¹⁴⁸Ce — Unstable · t½ ≈ 56 s · Decay: β⁻ → ¹⁴⁸Pr · Type: synthetic · Uses: research.
¹⁴⁹Ce — Unstable · t½ ≈ 5.0 s · Decay: β⁻ → ¹⁴⁹Pr · Type: synthetic · Uses: research.
¹⁵⁰Ce — Unstable · t½ ≈ 4.0 s · Decay: β⁻ → ¹⁵⁰Pr · Type: synthetic · Uses: research.
¹⁵¹Ce — Unstable · t½ ≈ 1.0 s · Decay: β⁻ → ¹⁵¹Pr · Type: synthetic · Uses: research.
¹⁵²Ce — Unstable · t½ ≈ 0.9 s · Decay: β⁻ → ¹⁵²Pr · Type: synthetic · Uses: research.
¹⁵³Ce — Unstable · t½ ≈ 0.5 s · Decay: β⁻ → ¹⁵³Pr · Type: synthetic · Uses: research.
¹⁵⁴Ce — Unstable · t½ ≈ 0.35 s · Decay: β⁻ → ¹⁵⁴Pr · Type: synthetic · Uses: research.
¹⁵⁵Ce — Unstable · t½ ≈ 0.3 s · Decay: β⁻ → ¹⁵⁵Pr · Type: synthetic · Uses: research.
¹⁵⁶Ce — Unstable · t½ ≈ 0.2 s · Decay: β⁻ → ¹⁵⁶Pr · Type: synthetic · Uses: research.
¹⁵⁷Ce — Unstable · t½ ≈ 0.15 s · Decay: β⁻ → ¹⁵⁷Pr · Type: synthetic · Uses: research.
¹⁵⁸Ce — Unstable · t½ ≈ 0.12 s · Decay: β⁻ → ¹⁵⁸Pr · Type: synthetic · Uses: research.
¹⁵⁹Ce — Unstable · t½ ≈ 0.1 s · Decay: β⁻ → ¹⁵⁹Pr · Type: synthetic · Uses: research.
Cerium — isotope count: 41 total · Stable: 4 (¹³⁶Ce, ¹³⁸Ce, ¹⁴⁰Ce, ¹⁴²Ce) · Unstable: 37.
(Data: IAEA LiveChart, NUBASE2020, ENSDF; notable applications: ¹³⁶Ce in double-β studies, ¹³⁹Ce/¹⁴¹Ce in reactor monitoring, ¹⁴⁴Ce in nuclear waste, stable Ce isotopes in alloys and tracers.)
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