²³³Cm — Unstable · t½ ≈ 20.0 min · Decay: β⁺ → ²³³Am · Type: synthetic · Uses: research.
²³⁴Cm — Unstable · t½ ≈ 51.0 s · Decay: β⁺ → ²³⁴Am · Type: synthetic · Uses: research.
²³⁵Cm — Unstable · t½ ≈ 9.0 h · Decay: β⁺ → ²³⁵Am · Type: synthetic · Uses: research.
²³⁶Cm — Unstable · t½ ≈ 6.8 d · Decay: β⁻ → ²³⁶Bk · Type: synthetic · Uses: research.
²³⁷Cm — Unstable · t½ ≈ 20.0 h · Decay: β⁻ → ²³⁷Bk · Type: synthetic · Uses: research.
²³⁸Cm — Unstable · t½ ≈ 2.4 h · Decay: β⁻ → ²³⁸Bk · Type: synthetic · Uses: research.
²³⁹Cm — Unstable · t½ ≈ 2.9 h · Decay: β⁻ → ²³⁹Bk · Type: synthetic · Uses: research.
²⁴⁰Cm — Unstable · t½ ≈ 27.0 d · Decay: α → ²³⁶Pu · Type: synthetic · Uses: research.
²⁴¹Cm — Unstable · t½ ≈ 32.0 d · Decay: α → ²³⁷Pu · Type: synthetic · Uses: research.
²⁴²Cm — Unstable · t½ ≈ 162.8 d · Decay: α → ²³⁸Pu · Type: synthetic · Uses: RTG heat sources (limited).
²⁴³Cm — Unstable · t½ ≈ 28.5 y · Decay: α → ²³⁹Pu · Type: synthetic · Uses: research, neutron source.
²⁴⁴Cm — Unstable · t½ ≈ 18.1 y · Decay: α → ²⁴⁰Pu · Type: synthetic · Uses: neutron sources, RTGs.
²⁴⁵Cm — Unstable · t½ ≈ 8.5×10³ y · Decay: α → ²⁴¹Pu · Type: long-lived radionuclide · Uses: research.
²⁴⁶Cm — Unstable · t½ ≈ 4.7×10³ y · Decay: α → ²⁴²Pu · Type: long-lived radionuclide · Uses: research.
²⁴⁷Cm — Unstable · t½ ≈ 1.56×10⁷ y · Decay: α → ²⁴³Pu · Type: long-lived radionuclide · Uses: research.
²⁴⁸Cm — Unstable · t½ ≈ 3.48×10⁵ y · Decay: α → ²⁴⁴Pu · Type: long-lived radionuclide · Uses: neutron source, research.
²⁴⁹Cm — Unstable · t½ ≈ 64.1 min · Decay: β⁻ → ²⁴⁹Bk · Type: synthetic · Uses: research.
²⁵⁰Cm — Unstable · t½ ≈ 8.3×10³ y · Decay: α → ²⁴⁶Pu · Type: long-lived radionuclide · Uses: research.
²⁵¹Cm — Unstable · t½ ≈ 15.6 min · Decay: β⁻ → ²⁵¹Bk · Type: synthetic · Uses: research.
Curium — isotope count: 19 total · Stable: none · Unstable: 19.
(Data: IAEA LiveChart, NUBASE2020, ENSDF, Wikipedia “Isotopes of curium.” Notable applications: ²⁴²Cm and ²⁴⁴Cm in neutron sources and RTGs, ²⁴⁸Cm in research on spontaneous fission and heavy element synthesis.)