Answer: 0.200 g
Given: Half life of Sm-146 = t1/2 = 103.5 million years
Time period, t = 1.035 billion years = 1035 million years
The original mass of the sample, [A]₀ = 205 g
To determine:
Amount of sample after t = 1035 million years
Step-by-step explanation:
The rate of radioactive decay is given as: