Half-Life Calculator

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Understanding Half-Life

Basic Concepts

  • Time for half of substance to decay
  • Constant rate of decay
  • Independent of initial amount
  • Used in radioactive decay

Decay Formula

  • N(t) = N₀ × e^(-λt)
  • λ = ln(2)/t₁/₂
  • t₁/₂ = half-life
  • N₀ = initial amount

Applications

  • Carbon dating
  • Nuclear medicine
  • Radioactive waste
  • Drug metabolism