¹⁶⁶Pt — Unstable · t½ ≈ 300 ms · Decay: β⁺ → ¹⁶⁶Ir · Type: synthetic · Uses: research.
¹⁶⁷Pt — Unstable · t½ ≈ 350 ms · Decay: β⁺ → ¹⁶⁷Ir · Type: synthetic · Uses: research.
¹⁶⁸Pt — Unstable · t½ ≈ 1.0 s · Decay: β⁺ → ¹⁶⁸Ir · Type: synthetic · Uses: research.
¹⁶⁹Pt — Unstable · t½ ≈ 2.0 s · Decay: β⁺ → ¹⁶⁹Ir · Type: synthetic · Uses: research.
¹⁷⁰Pt — Unstable · t½ ≈ 2.0 s · Decay: β⁺ → ¹⁷⁰Ir · Type: synthetic · Uses: research.
¹⁷¹Pt — Unstable · t½ ≈ 2.5 s · Decay: β⁺ → ¹⁷¹Ir · Type: synthetic · Uses: research.
¹⁷²Pt — Unstable · t½ ≈ 5.0 s · Decay: β⁺ → ¹⁷²Ir · Type: synthetic · Uses: research.
¹⁷³Pt — Unstable · t½ ≈ 4.0 s · Decay: β⁺ → ¹⁷³Ir · Type: synthetic · Uses: research.
¹⁷⁴Pt — Unstable · t½ ≈ 2.4 s · Decay: β⁺ → ¹⁷⁴Ir · Type: synthetic · Uses: research.
¹⁷⁵Pt — Unstable · t½ ≈ 9.0 s · Decay: β⁺ → ¹⁷⁵Ir · Type: synthetic · Uses: research.
¹⁷⁶Pt — Unstable · t½ ≈ 6.0 s · Decay: β⁺ → ¹⁷⁶Ir · Type: synthetic · Uses: research.
¹⁷⁷Pt — Unstable · t½ ≈ 19.0 s · Decay: β⁺ → ¹⁷⁷Ir · Type: synthetic · Uses: research.
¹⁷⁸Pt — Unstable · t½ ≈ 21.0 s · Decay: β⁺ → ¹⁷⁸Ir · Type: synthetic · Uses: research.
¹⁷⁹Pt — Unstable · t½ ≈ 19.0 s · Decay: β⁺ → ¹⁷⁹Ir · Type: synthetic · Uses: research.
¹⁸⁰Pt — Unstable · t½ ≈ 21.7 s · Decay: β⁺ → ¹⁸⁰Ir · Type: synthetic · Uses: research.
¹⁸¹Pt — Unstable · t½ ≈ 19.9 s · Decay: β⁺ → ¹⁸¹Ir · Type: synthetic · Uses: research.
¹⁸²Pt — Unstable · t½ ≈ 56.0 s · Decay: β⁺ → ¹⁸²Ir · Type: synthetic · Uses: research.
¹⁸³Pt — Unstable · t½ ≈ 1.7 min · Decay: β⁺ → ¹⁸³Ir · Type: synthetic · Uses: research.
¹⁸⁴Pt — Unstable · t½ ≈ 2.5 min · Decay: β⁺ → ¹⁸⁴Ir · Type: synthetic · Uses: research.
¹⁸⁵Pt — Unstable · t½ ≈ 4.1 min · Decay: β⁺ → ¹⁸⁵Ir · Type: synthetic · Uses: research.
¹⁸⁶Pt — Unstable · t½ ≈ 2.1 h · Decay: β⁻ → ¹⁸⁶Au · Type: tracer · Uses: nuclear research.
¹⁸⁷Pt — Unstable · t½ ≈ 2.4 h · Decay: β⁻ → ¹⁸⁷Au · Type: tracer · Uses: nuclear research.
¹⁸⁸Pt — Unstable · t½ ≈ 10.2 d · Decay: β⁻ → ¹⁸⁸Au · Type: tracer · Uses: nuclear research.
¹⁸⁹Pt — Unstable · t½ ≈ 10.9 h · Decay: β⁻ → ¹⁸⁹Au · Type: tracer · Uses: nuclear research.
¹⁹⁰Pt — Stable · — · Type: stable (primordial, ~0.01%) · Uses: isotope tracer.
¹⁹¹Pt — Unstable · t½ ≈ 2.9 d · Decay: β⁻ → ¹⁹¹Au · Type: tracer · Uses: nuclear research.
¹⁹²Pt — Stable · — · Type: stable (primordial, ~0.78%) · Uses: isotope tracer.
¹⁹³Pt — Stable · — · Type: stable (primordial, ~32.9%) · Uses: isotope tracer, catalysis, industrial alloys.
¹⁹⁴Pt — Stable · — · Type: stable (primordial, ~32.9%) · Uses: isotope tracer, catalysis, industrial alloys.
¹⁹⁵Pt — Stable · — · Type: stable (primordial, ~33.8%) · Uses: isotope tracer, catalysis, industrial alloys.
¹⁹⁶Pt — Stable · — · Type: stable (primordial, ~25.3%) · Uses: isotope tracer, catalysis, industrial alloys.
¹⁹⁷Pt — Unstable · t½ ≈ 19.9 h · Decay: β⁻ → ¹⁹⁷Au · Type: tracer · Uses: nuclear research.
¹⁹⁸Pt — Unstable · t½ ≈ 31.0 h · Decay: β⁻ → ¹⁹⁸Au · Type: tracer · Uses: nuclear research.
Platinum — isotope count: 33 total · Stable: 6 (¹⁹⁰Pt, ¹⁹²Pt, ¹⁹³Pt, ¹⁹⁴Pt, ¹⁹⁵Pt, ¹⁹⁶Pt) · Unstable: 27.
(Data: IAEA LiveChart, NUBASE2020, ENSDF; notable applications: stable Pt isotopes in catalysis and alloys, ¹⁹²Ir/¹⁹²Pt in geochemistry, unstable Pt isotopes in tracer research.)