The half-life of radium is 1600 years. The fraction of a sample of radium that would remain after 6400 year is ……….
A. \(\frac {1}{2}\)
B. \(\frac {1}{4}\)
C. \(\frac {1}{8}\)
D. \(\frac {1}{16}\)
Answer:D
The half-life of radium is 1600 years. The fraction of a sample of radium that would remain after 6400 year is ……….
A. \(\frac {1}{2}\) B. \(\frac {1}{4}\) C. \(\frac {1}{8}\) D. \(\frac {1}{16}\)