The radioactive potassium-40 isotope decays to argon-40 with a half-life of 1.2 × 109 years, (a) Write a balanced equation for the reaction, (b) A sample of moon rock is found to contain 18 percent potassium-40 and 82 percent argon by mass. Calculate the age of the rock in years. (Assume that all the argon in the sample is the result of potassium decay.)
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.