Respuesta :

22jackshart

Answer:

50%, 25%, 12.5%

Step-by-step explanation:

A half life is how long some substance stays whole untill it gets cut in half.

A half life of a hundred years means that after a hundred years, 50% will remain.

Then 25% and so on.

mhanifa

Answer:

Half-life period is 100 years, it means after 100 years the amount halves.

  • 1) After 100 years ⇒ 50% remains
  • 2) After 200 years ⇒ 1/2*50% = 25% remains
  • 3) After 300 years ⇒ 1/2*25% = 12.5% remains

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