38. Half-Life (See Section 3.2) Thorium- 232 has a half-life of 14 billion years. Make a table showing the half-life decay of a sample of thorium-232 from 16 grams to 1 gram; list the time (in years, starting with t=0 ) in the first column and the mass (in grams) in the second column. Which type of sequence is each column of the table?
a.