²⁵⁰No — Unstable · t½ ≈ 3.0 ms · Decay: α → ²⁴⁶Fm · Type: synthetic · Uses: research.
²⁵¹No — Unstable · t½ ≈ 6.0 ms · Decay: α → ²⁴⁷Fm · Type: synthetic · Uses: research.
²⁵²No — Unstable · t½ ≈ 25.0 s · Decay: α → ²⁴⁸Fm · Type: synthetic · Uses: research.
²⁵³No — Unstable · t½ ≈ 1.6 min · Decay: α → ²⁴⁹Fm · Type: synthetic · Uses: research.
²⁵⁴No — Unstable · t½ ≈ 51.0 s · Decay: α → ²⁵⁰Fm · Type: synthetic · Uses: research.
²⁵⁵No — Unstable · t½ ≈ 3.1 min · Decay: α → ²⁵¹Fm · Type: synthetic · Uses: research.
²⁵⁶No — Unstable · t½ ≈ 2.9 s · Decay: α → ²⁵²Fm · Type: synthetic · Uses: research.
²⁵⁷No — Unstable · t½ ≈ 24.5 s · Decay: α → ²⁵³Fm · Type: synthetic · Uses: research.
²⁵⁸No — Unstable · t½ ≈ 1.2 s · Decay: α → ²⁵⁴Fm · Type: synthetic · Uses: research.
²⁵⁹No — Unstable · t½ ≈ 58.0 min · Decay: α → ²⁵⁵Fm · Type: synthetic · Uses: research.
²⁶⁰No — Unstable · t½ ≈ 107 min · Decay: α → ²⁵⁶Fm · Type: synthetic · Uses: nuclear chemistry studies.
²⁶¹No — Unstable · t½ ≈ 340 ms · Decay: α → ²⁵⁷Fm · Type: synthetic · Uses: research.
²⁶²No — Unstable · t½ ≈ 5.5 s · Decay: α → ²⁵⁸Fm · Type: synthetic · Uses: research.

Nobelium — isotope count: 13 total · Stable: none · Unstable: 13.
(Data: IAEA LiveChart, NUBASE2020, ENSDF, Wikipedia “Isotopes of nobelium.” Notable applications: isotopes used exclusively in superheavy element research; ²⁶⁰No of interest for its relatively long half-life.)