Physics 5054 · O Level · Half-life

Half-life — practice question

A wooden item is thought to be 6000 years old. Which isotope, present in the item, is used to find its age?

  • A$^{12}\text{C}$
  • B$^{13}\text{C}$
  • C$^{14}\text{C}$
  • D$^{15}\text{C}$

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