Dane8515 Dane8515
  • 27-02-2024
  • Chemistry
contestada

The half-life of radium-226 is 1600 years. If you have 200 grams of radium today, how many grams would have been present 8000 years ago?
a) 6400 g
b) 3200 g
c) 6.25 g
d) 3.13 g

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