¹⁶²Os — Unstable · t½ ≈ 70 ms · Decay: β⁺ → ¹⁶²Re · Type: synthetic · Uses: research.
¹⁶³Os — Unstable · t½ ≈ 1.0 s · Decay: β⁺ → ¹⁶³Re · Type: synthetic · Uses: research.
¹⁶⁴Os — Unstable · t½ ≈ 2.0 s · Decay: β⁺ → ¹⁶⁴Re · Type: synthetic · Uses: research.
¹⁶⁵Os — Unstable · t½ ≈ 6.0 s · Decay: β⁺ → ¹⁶⁵Re · Type: synthetic · Uses: research.
¹⁶⁶Os — Unstable · t½ ≈ 20.0 s · Decay: β⁺ → ¹⁶⁶Re · Type: synthetic · Uses: research.
¹⁶⁷Os — Unstable · t½ ≈ 25.0 s · Decay: β⁺ → ¹⁶⁷Re · Type: synthetic · Uses: research.
¹⁶⁸Os — Unstable · t½ ≈ 21.0 s · Decay: β⁺ → ¹⁶⁸Re · Type: synthetic · Uses: research.
¹⁶⁹Os — Unstable · t½ ≈ 30.0 s · Decay: β⁺ → ¹⁶⁹Re · Type: synthetic · Uses: research.
¹⁷⁰Os — Unstable · t½ ≈ 1.0 min · Decay: β⁺ → ¹⁷⁰Re · Type: synthetic · Uses: research.
¹⁷¹Os — Unstable · t½ ≈ 4.0 min · Decay: β⁺ → ¹⁷¹Re · Type: synthetic · Uses: research.
¹⁷²Os — Unstable · t½ ≈ 19.0 s · Decay: β⁺ → ¹⁷²Re · Type: synthetic · Uses: research.
¹⁷³Os — Unstable · t½ ≈ 22.0 s · Decay: β⁺ → ¹⁷³Re · Type: synthetic · Uses: research.
¹⁷⁴Os — Unstable · t½ ≈ 42.0 s · Decay: β⁺ → ¹⁷⁴Re · Type: synthetic · Uses: research.
¹⁷⁵Os — Unstable · t½ ≈ 93.0 s · Decay: β⁺ → ¹⁷⁵Re · Type: synthetic · Uses: research.
¹⁷⁶Os — Unstable · t½ ≈ 3.9 min · Decay: β⁺ → ¹⁷⁶Re · Type: synthetic · Uses: research.
¹⁷⁷Os — Unstable · t½ ≈ 3.0 min · Decay: β⁺ → ¹⁷⁷Re · Type: synthetic · Uses: research.
¹⁷⁸Os — Unstable · t½ ≈ 5.0 min · Decay: β⁺ → ¹⁷⁸Re · Type: synthetic · Uses: research.
¹⁷⁹Os — Unstable · t½ ≈ 6.5 min · Decay: β⁺ → ¹⁷⁹Re · Type: synthetic · Uses: research.
¹⁸⁰Os — Unstable · t½ ≈ 21.5 min · Decay: β⁺ → ¹⁸⁰Re · Type: synthetic · Uses: research.
¹⁸¹Os — Unstable · t½ ≈ 93.0 min · Decay: β⁻ → ¹⁸¹Ir · Type: synthetic · Uses: research.
¹⁸²Os — Stable · — · Type: stable (primordial, ~0.02%) · Uses: isotope tracer.
¹⁸³Os — Stable · — · Type: stable (primordial, ~0.02%) · Uses: isotope tracer.
¹⁸⁴Os — Stable · — · Type: stable (primordial, ~0.02%) · Uses: isotope tracer.
¹⁸⁵Os — Stable · — · Type: stable (primordial, ~1.6%) · Uses: isotope tracer.
¹⁸⁶Os — Stable · — · Type: stable (primordial, ~1.6%) · Uses: isotope tracer.
¹⁸⁷Os — Stable · — · Type: stable (primordial, ~1.6%) · Uses: isotope tracer, Re–Os geochronology.
¹⁸⁸Os — Stable · — · Type: stable (primordial, ~13.3%) · Uses: isotope tracer.
¹⁸⁹Os — Stable · — · Type: stable (primordial, ~16.1%) · Uses: isotope tracer.
¹⁹⁰Os — Stable · — · Type: stable (primordial, ~26.4%) · Uses: isotope tracer.
¹⁹¹Os — Stable · — · Type: stable (primordial, ~15.9%) · Uses: isotope tracer.
¹⁹²Os — Stable · — · Type: stable (primordial, ~41.0%) · Uses: isotope tracer, industrial alloys.
¹⁹³Os — Unstable · t½ ≈ 30.0 h · Decay: β⁻ → ¹⁹³Ir · Type: tracer · Uses: research.
Osmium — isotope count: 32 total · Stable: 7 (¹⁸⁴Os, ¹⁸⁶Os, ¹⁸⁷Os, ¹⁸⁸Os, ¹⁸⁹Os, ¹⁹⁰Os, ¹⁹¹Os, ¹⁹²Os) · Unstable: 25.
(Data: IAEA LiveChart, NUBASE2020, ENSDF; notable applications: stable Os isotopes in alloys, ¹⁸⁷Os/¹⁸⁷Re in geochronology, Os tracers in geology, catalysis, and cosmochemistry.)
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.