19 The mass of a radioactive radium sample remaining after a given number of years is shown
in the graph below.
Remaining Radioactive Radium
Radioactive Radium (grams)
Which statements are TRUE? Select all that
apply
A. Half of the initial sample remains after
approximately 1,600 years
B. The initial sample of radioactive radium contains
28 grams
ור
5000
2000
Time (years)
C. The time-intercept of the radioactive radium
sample function is about 10,000 years.
D. The amount of radioactive radium approaches 0
grams as time approaches infinity.
Which statements are TRUE? Select all that
apply