The half-life of the radioactive nucleus 226Ra86 is 1.6 * 10^3 yr. If a sample contains 3.0 * 10^16 such nuclei, determine the activity at this time. determine the activity at this time. The half-life of the radioactive nucleus 226Ra86 is 1.6 * 10^3 yr. If a sample contains 3.0 * 10^16 such nuclei October [...]
