⁷⁸Zr — Unstable · t½ ≈ 32 ms · Decay: β⁺ → ⁷⁸Y · Type: synthetic · Uses: research.
⁷⁹Zr — Unstable · t½ ≈ 56 ms · Decay: β⁺ → ⁷⁹Y · Type: synthetic · Uses: research.
⁸⁰Zr — Unstable · t½ ≈ 4.1 s · Decay: β⁺ → ⁸⁰Y · Type: synthetic · Uses: research.
⁸¹Zr — Unstable · t½ ≈ 5.5 s · Decay: β⁺ → ⁸¹Y · Type: synthetic · Uses: research.
⁸²Zr — Unstable · t½ ≈ 32 s · Decay: β⁺ → ⁸²Y · Type: synthetic · Uses: research.
⁸³Zr — Unstable · t½ ≈ 41 s · Decay: β⁺ → ⁸³Y · Type: synthetic · Uses: research.
⁸⁴Zr — Unstable · t½ ≈ 3.5 min · Decay: β⁺ → ⁸⁴Y · Type: synthetic · Uses: tracer.
⁸⁵Zr — Unstable · t½ ≈ 7.9 min · Decay: β⁺ → ⁸⁵Y · Type: synthetic · Uses: tracer.
⁸⁶Zr — Stable · — · Type: stable (primordial) · Uses: isotopic tracer in geochemistry.
⁸⁷Zr — Unstable · t½ ≈ 1.68 h · Decay: β⁻ → ⁸⁷Nb · Type: activation · Uses: tracer.
⁸⁸Zr — Unstable · t½ ≈ 83.4 d · Decay: β⁻ → ⁸⁸Nb · Type: activation · Uses: tracer in nuclear medicine.
⁸⁹Zr — Unstable · t½ ≈ 78.4 h · Decay: β⁺ → ⁸⁹Y · Type: cyclotron isotope · Uses: PET imaging with monoclonal antibodies.
⁹⁰Zr — Stable · — · Type: stable (primordial) · Uses: alloys, reactor cladding, isotopic studies.
⁹¹Zr — Stable · — · Type: stable (primordial) · Uses: isotope tracer.
⁹²Zr — Stable · — · Type: stable (primordial) · Uses: isotope tracer.
⁹³Zr — Unstable · t½ ≈ 1.53 Myr · Decay: β⁻ → ⁹³Nb · Type: fission product · Uses: long-lived waste isotope.
⁹⁴Zr — Stable · — · Type: stable (primordial) · Uses: isotopic tracer.
⁹⁵Zr — Unstable · t½ ≈ 64 d · Decay: β⁻ → ⁹⁵Nb · Type: fission product · Uses: reactor monitoring.
⁹⁶Zr — Stable · — · Type: stable (primordial, rare) · Uses: isotope tracer, double-β decay candidate.
⁹⁷Zr — Unstable · t½ ≈ 16.9 h · Decay: β⁻ → ⁹⁷Nb · Type: fission product · Uses: research.
⁹⁸Zr — Unstable · t½ ≈ 30.7 s · Decay: β⁻ → ⁹⁸Nb · Type: synthetic · Uses: research.
⁹⁹Zr — Unstable · t½ ≈ 2.1 s · Decay: β⁻ → ⁹⁹Nb · Type: fission product · Uses: research.
¹⁰⁰Zr — Unstable · t½ ≈ 7.1 s · Decay: β⁻ → ¹⁰⁰Nb · Type: synthetic · Uses: research.
¹⁰¹Zr — Unstable · t½ ≈ 2.5 s · Decay: β⁻ → ¹⁰¹Nb · Type: synthetic · Uses: research.
¹⁰²Zr — Unstable · t½ ≈ 2.9 s · Decay: β⁻ → ¹⁰²Nb · Type: synthetic · Uses: research.
¹⁰³Zr — Unstable · t½ ≈ 1.5 s · Decay: β⁻ → ¹⁰³Nb · Type: synthetic · Uses: research.
¹⁰⁴Zr — Unstable · t½ ≈ 1.0 s · Decay: β⁻ → ¹⁰⁴Nb · Type: synthetic · Uses: research.
¹⁰⁵Zr — Unstable · t½ ≈ 680 ms · Decay: β⁻ → ¹⁰⁵Nb · Type: synthetic · Uses: research.
¹⁰⁶Zr — Unstable · t½ ≈ 530 ms · Decay: β⁻ → ¹⁰⁶Nb · Type: synthetic · Uses: research.
¹⁰⁷Zr — Unstable · t½ ≈ 420 ms · Decay: β⁻ → ¹⁰⁷Nb · Type: synthetic · Uses: research.
¹⁰⁸Zr — Unstable · t½ ≈ 270 ms · Decay: β⁻ → ¹⁰⁸Nb · Type: synthetic · Uses: research.
¹⁰⁹Zr — Unstable · t½ ≈ 210 ms · Decay: β⁻ → ¹⁰⁹Nb · Type: synthetic · Uses: research.
¹¹⁰Zr — Unstable · t½ ≈ 150 ms · Decay: β⁻ → ¹¹⁰Nb · Type: synthetic · Uses: research.
¹¹¹Zr — Unstable · t½ ≈ 120 ms · Decay: β⁻ → ¹¹¹Nb · Type: synthetic · Uses: research.
¹¹²Zr — Unstable · t½ ≈ 100 ms · Decay: β⁻ → ¹¹²Nb · Type: synthetic · Uses: research.
Zirconium — isotope count: 35 total · Stable: 5 (⁸⁶Zr, ⁹⁰Zr, ⁹¹Zr, ⁹²Zr, ⁹⁴Zr, ⁹⁶Zr) · Unstable: 29.
(Data: IAEA LiveChart, NUBASE2020, ENSDF; notable applications: ⁸⁹Zr in PET imaging, ⁹⁰Zr in reactor alloys, ⁹³Zr in nuclear waste monitoring.)
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