¹⁴⁰Ho — Unstable · t½ ≈ 4.0 ms · Decay: β⁺ → ¹⁴⁰Dy · Type: synthetic · Uses: research.
¹⁴¹Ho — Unstable · t½ ≈ 6.7 ms · Decay: β⁺ → ¹⁴¹Dy · Type: synthetic · Uses: research.
¹⁴²Ho — Unstable · t½ ≈ 8.0 ms · Decay: β⁺ → ¹⁴²Dy · Type: synthetic · Uses: research.
¹⁴³Ho — Unstable · t½ ≈ 37 ms · Decay: β⁺ → ¹⁴³Dy · Type: synthetic · Uses: research.
¹⁴⁴Ho — Unstable · t½ ≈ 8.0 ms · Decay: β⁺ → ¹⁴⁴Dy · Type: synthetic · Uses: research.
¹⁴⁵Ho — Unstable · t½ ≈ 6.0 ms · Decay: β⁺ → ¹⁴⁵Dy · Type: synthetic · Uses: research.
¹⁴⁶Ho — Unstable · t½ ≈ 11.0 ms · Decay: β⁺ → ¹⁴⁶Dy · Type: synthetic · Uses: research.
¹⁴⁷Ho — Unstable · t½ ≈ 5.0 s · Decay: β⁺ → ¹⁴⁷Dy · Type: synthetic · Uses: research.
¹⁴⁸Ho — Unstable · t½ ≈ 3.0 s · Decay: β⁺ → ¹⁴⁸Dy · Type: synthetic · Uses: research.
¹⁴⁹Ho — Unstable · t½ ≈ 21.0 s · Decay: β⁺ → ¹⁴⁹Dy · Type: synthetic · Uses: research.
¹⁵⁰Ho — Unstable · t½ ≈ 76.0 s · Decay: β⁺ → ¹⁵⁰Dy · Type: synthetic · Uses: research.
¹⁵¹Ho — Unstable · t½ ≈ 35.0 s · Decay: β⁺ → ¹⁵¹Dy · Type: synthetic · Uses: research.
¹⁵²Ho — Unstable · t½ ≈ 8.0 min · Decay: β⁺ → ¹⁵²Dy · Type: synthetic · Uses: research.
¹⁵³Ho — Unstable · t½ ≈ 4.6 min · Decay: β⁺ → ¹⁵³Dy · Type: synthetic · Uses: research.
¹⁵⁴Ho — Unstable · t½ ≈ 11.8 min · Decay: β⁺ → ¹⁵⁴Dy · Type: synthetic · Uses: research.
¹⁵⁵Ho — Unstable · t½ ≈ 48 min · Decay: β⁺ → ¹⁵⁵Dy · Type: synthetic · Uses: research.
¹⁵⁶Ho — Unstable · t½ ≈ 56 min · Decay: β⁺ → ¹⁵⁶Dy · Type: synthetic · Uses: research.
¹⁵⁷Ho — Unstable · t½ ≈ 12.6 min · Decay: β⁺ → ¹⁵⁷Dy · Type: synthetic · Uses: research.
¹⁵⁸Ho — Unstable · t½ ≈ 11.8 min · Decay: β⁺ → ¹⁵⁸Dy · Type: synthetic · Uses: research.
¹⁵⁹Ho — Unstable · t½ ≈ 33.0 min · Decay: β⁺ → ¹⁵⁹Dy · Type: synthetic · Uses: research.
¹⁶⁰Ho — Unstable · t½ ≈ 25.6 min · Decay: β⁺ → ¹⁶⁰Dy · Type: synthetic · Uses: research.
¹⁶¹Ho — Unstable · t½ ≈ 2.5 h · Decay: β⁻ → ¹⁶¹Er · Type: synthetic · Uses: research.
¹⁶²Ho — Unstable · t½ ≈ 15.0 min · Decay: β⁻ → ¹⁶²Er · Type: synthetic · Uses: research.
¹⁶³Ho — Unstable · t½ ≈ 67.0 min · Decay: β⁻ → ¹⁶³Er · Type: synthetic · Uses: research.
¹⁶⁴Ho — Unstable · t½ ≈ 29.0 min · Decay: β⁻ → ¹⁶⁴Er · Type: synthetic · Uses: research.
¹⁶⁵Ho — Unstable · t½ ≈ 2.5 h · Decay: β⁻ → ¹⁶⁵Er · Type: synthetic · Uses: research.
¹⁶⁶Ho — Unstable · t½ ≈ 26.8 h · Decay: β⁻ → ¹⁶⁶Er · Type: synthetic · Uses: research.
¹⁶⁷Ho — Unstable · t½ ≈ 3.1 h · Decay: β⁻ → ¹⁶⁷Er · Type: synthetic · Uses: research.
¹⁶⁸Ho — Unstable · t½ ≈ 4.5 h · Decay: β⁻ → ¹⁶⁸Er · Type: synthetic · Uses: research.
¹⁶⁹Ho — Unstable · t½ ≈ 4.7 h · Decay: β⁻ → ¹⁶⁹Er · Type: synthetic · Uses: research.
¹⁷⁰Ho — Unstable · t½ ≈ 28.8 h · Decay: β⁻ → ¹⁷⁰Er · Type: synthetic · Uses: research.
¹⁷¹Ho — Stable · — · Type: stable (primordial, only stable isotope) · Uses: neutron absorbers, magnets, lasers, isotope tracer.
¹⁷²Ho — Unstable · t½ ≈ 2.0 d · Decay: β⁻ → ¹⁷²Er · Type: synthetic · Uses: tracer.
¹⁷³Ho — Unstable · t½ ≈ 4.9 h · Decay: β⁻ → ¹⁷³Er · Type: synthetic · Uses: research.
¹⁷⁴Ho — Unstable · t½ ≈ 2.0 h · Decay: β⁻ → ¹⁷⁴Er · Type: synthetic · Uses: research.
¹⁷⁵Ho — Unstable · t½ ≈ 1.3 h · Decay: β⁻ → ¹⁷⁵Er · Type: synthetic · Uses: research.
Holmium — isotope count: 36 total · Stable: 1 (¹⁷¹Ho) · Unstable: 35.
(Data: IAEA LiveChart, NUBASE2020, ENSDF; notable applications: ¹⁷¹Ho in neutron-absorbing materials, magnets, lasers, isotope tracers; unstable Ho isotopes in nuclear research.)
Key terms in plain language
Open a term for a concise explanation of language used on this page.
Broadband
A general term for always-on, high-speed Internet access. Broadband can be delivered over fiber, cable, DSL, fixed wireless, cellular, or satellite networks.
Cloud Computing
Computing resources—such as applications, servers, storage, or databases—delivered from remote infrastructure and scaled as requirements change.
Cybersecurity
The practices and controls used to protect identities, devices, networks, applications, and data from unauthorized access, disruption, or manipulation.
Identity and Access Management (IAM)
The systems and policies that determine who a user is, what resources they may access, and how that access is authenticated and reviewed.
API
An application programming interface is a defined way for software systems to exchange data or request functions from one another.
Artificial Intelligence (AI)
Software designed to perform tasks involving prediction, classification, generation, reasoning, or decision support. Business use still requires clear data, governance, security, and human accountability.