English

Noun

calcium-45 ‎(uncountable)

1. (physics) A radioactive isotope of calcium, ⁴⁵₂₀Ca, having twenty protons and twenty-five neutrons, and a half-life of 165 days; it is used as a tracer in studying calcium metabolism

Related terms

• calcium-40
• calcium-42
• calcium-43
• calcium-44
• calcium-46
• calcium-48