Determine the quantity present after 200 years. Round to the nearest hundredth of a gram.

Question

Let Q represent a mass of radioactive radium (226Ra) (in grams), whose half-life

is 1599 years. The quantity of radium present after t years is





A) 0.00 g

B) 4.00 g

C) 0.92 g

D) 3.67 g

E) 0.25 g

Answer 1

D) 3.67 g