The specific activity of a radioactive material is the number of disintegrations per second per gram of radioactive atoms.
a) Given the half-life of 146C of 5730 yr, calculate the specific activity of 146C. Express your result in disintegrations per second per gram, becquerel per gram, and curie per gram.
b) Calculate the initial activity of a 5.00-g piece of wood.
c) How many 146C disintegrations have occurred in a 5.00-g piece of wood that was cut from a tree on January 1, 1700?