⁷⁶Y — Unstable · t½ ≈ 54 ms · Decay: β⁺ → ⁷⁶Sr · Type: synthetic · Uses: research.
⁷⁷Y — Unstable · t½ ≈ 75 ms · Decay: β⁺ → ⁷⁷Sr · Type: synthetic · Uses: research.
⁷⁸Y — Unstable · t½ ≈ 55 ms · Decay: β⁺ → ⁷⁸Sr · Type: synthetic · Uses: research.
⁷⁹Y — Unstable · t½ ≈ 15.7 s · Decay: β⁺ → ⁷⁹Sr · Type: synthetic · Uses: research.
⁸⁰Y — Unstable · t½ ≈ 30.1 s · Decay: β⁺ → ⁸⁰Sr · Type: synthetic · Uses: research.
⁸¹Y — Unstable · t½ ≈ 70.4 s · Decay: β⁺ → ⁸¹Sr · Type: synthetic · Uses: research.
⁸²Y — Unstable · t½ ≈ 8.3 s · Decay: β⁺ → ⁸²Sr · Type: synthetic · Uses: research.
⁸³Y — Unstable · t½ ≈ 7.1 s · Decay: β⁺ → ⁸³Sr · Type: synthetic · Uses: research.
⁸⁴Y — Unstable · t½ ≈ 39 min · Decay: β⁺ → ⁸⁴Sr · Type: activation product · Uses: tracer.
⁸⁵Y — Unstable · t½ ≈ 2.68 h · Decay: β⁺ → ⁸⁵Sr · Type: activation · Uses: tracer.
⁸⁶Y — Unstable · t½ ≈ 14.7 h · Decay: β⁺ → ⁸⁶Sr · Type: activation · Uses: tracer.
⁸⁷Y — Unstable · t½ ≈ 79.8 h · Decay: β⁻ → ⁸⁷Zr · Type: activation product · Uses: tracer.
⁸⁸Y — Unstable · t½ ≈ 106.6 d · Decay: β⁻ → ⁸⁸Zr · Type: activation product · Uses: tracer.
⁸⁹Y — Unstable · t½ ≈ 58.5 d · Decay: β⁻ → ⁸⁹Zr · Type: activation · Uses: tracer.
⁹⁰Y — Unstable · t½ ≈ 64 h · Decay: β⁻ → ⁹⁰Zr · Type: fission product (daughter of ⁹⁰Sr) · Uses: cancer radiotherapy (β-emitter).
⁹¹Y — Unstable · t½ ≈ 58.5 d · Decay: β⁻ → ⁹¹Zr · Type: activation · Uses: tracer.
⁹²Y — Unstable · t½ ≈ 3.5 h · Decay: β⁻ → ⁹²Zr · Type: fission product · Uses: research.
⁹³Y — Unstable · t½ ≈ 10.2 h · Decay: β⁻ → ⁹³Zr · Type: fission product · Uses: research.
⁹⁴Y — Unstable · t½ ≈ 18.7 min · Decay: β⁻ → ⁹⁴Zr · Type: fission product · Uses: research.
⁹⁵Y — Unstable · t½ ≈ 10.3 min · Decay: β⁻ → ⁹⁵Zr · Type: synthetic · Uses: research.
⁹⁶Y — Unstable · t½ ≈ 5.3 s · Decay: β⁻ → ⁹⁶Zr · Type: synthetic · Uses: research.
⁹⁷Y — Unstable · t½ ≈ 3.7 s · Decay: β⁻ → ⁹⁷Zr · Type: synthetic · Uses: research.
⁹⁸Y — Unstable · t½ ≈ 0.9 s · Decay: β⁻ → ⁹⁸Zr · Type: synthetic · Uses: research.
⁹⁹Y — Unstable · t½ ≈ 1.5 s · Decay: β⁻ → ⁹⁹Zr · Type: synthetic · Uses: research.
¹⁰⁰Y — Unstable · t½ ≈ 735 ms · Decay: β⁻ → ¹⁰⁰Zr · Type: synthetic · Uses: research.
¹⁰¹Y — Unstable · t½ ≈ 330 ms · Decay: β⁻ → ¹⁰¹Zr · Type: synthetic · Uses: research.
¹⁰²Y — Unstable · t½ ≈ 250 ms · Decay: β⁻ → ¹⁰²Zr · Type: synthetic · Uses: research.
¹⁰³Y — Unstable · t½ ≈ 200 ms · Decay: β⁻ → ¹⁰³Zr · Type: synthetic · Uses: research.
¹⁰⁴Y — Unstable · t½ ≈ 160 ms · Decay: β⁻ → ¹⁰⁴Zr · Type: synthetic · Uses: research.
¹⁰⁵Y — Unstable · t½ ≈ 120 ms · Decay: β⁻ → ¹⁰⁵Zr · Type: synthetic · Uses: research.
¹⁰⁶Y — Unstable · t½ ≈ 100 ms · Decay: β⁻ → ¹⁰⁶Zr · Type: synthetic · Uses: research.
¹⁰⁷Y — Unstable · t½ ≈ 90 ms · Decay: β⁻ → ¹⁰⁷Zr · Type: synthetic · Uses: research.
¹⁰⁸Y — Unstable · t½ ≈ 70 ms · Decay: β⁻ → ¹⁰⁸Zr · Type: synthetic · Uses: research.
¹⁰⁹Y — Unstable · t½ ≈ 55 ms · Decay: β⁻ → ¹⁰⁹Zr · Type: synthetic · Uses: research.
¹¹⁰Y — Unstable · t½ ≈ 40 ms · Decay: β⁻ → ¹¹⁰Zr · Type: synthetic · Uses: research.
¹¹¹Y — Unstable · t½ ≈ 30 ms · Decay: β⁻ → ¹¹¹Zr · Type: synthetic · Uses: research.
¹¹²Y — Unstable · t½ ≈ 20 ms · Decay: β⁻ → ¹¹²Zr · Type: synthetic · Uses: research.
Yttrium — isotope count: 37 total · Stable: 1 (⁸⁹Y) · Unstable: 36.
(Data from IAEA LiveChart, NUBASE2020, ENSDF; applications include ⁹⁰Y in targeted radiotherapy and ⁸²Sr/⁸²Rb generators that connect to Y isotopes.)