Seventy five percent of radioactive uranium-238 originally contained in a rock has decayed into lead-206. The half-life of uranium-238 is 4.5 billion years.
I know that the ratio of uranium-238 to lead-206 is 1:3, but do I use that to calculate the how old the rock is?
How old would the rock be?
I know that the ratio of uranium-238 to lead-206 is 1:3, but do I use that to calculate the how old the rock is?
How old would the rock be?