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A sample of material contains 100 micrograms of Ca-47 having a half-life of 4.536 days. Calculate the following: The number of Ca-47 atoms in the

A sample of material contains 100 micrograms of Ca-47 having a half-life of 4.536 days. Calculate the following:

  • The number of Ca-47 atoms in the sample.
  • The activity of Ca-47 in curies.
  • The number of Ca-47 atoms that will remain after 30 days.

The time that it will take for the activity to get reduced to one-tenth.

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