Question

Analysis of potassium and argon atoms in a moon rock sample by a mass spectrometer shows that the ration of the number of stable atoms present to the number of radioactive atoms is 7:1. assume that all the argon atoms wrer produced by the decay of potassium atoms, with a helf-life of years. how old is the rock?

Answer 1

Answer:

3 ×Half life

Explanation:Please find the answer in the attachment. ..