What does "aluminium-26" mean?

A radioactive isotope of aluminium, decaying by either positron emission or electron capture to stable magnesium-26, and having a half-life of 717,000 years.

Aluminium-26

noun

noun ·Rare ·Advanced level

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Noun

1
A radioactive isotope of aluminium, decaying by either positron emission or electron capture to stable magnesium-26, and having a half-life of 717,000 years. uncountable

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.