*If Potassium-40 is the parent element and Argon-40 is the daughter isotope, use the
figures above to estimate how old this sample is. Explain your reasoning. Be sure to
include the term "half-life" in your answer.

If Potassium40 is the parent element and Argon40 is the daughter isotope use the figures above to estimate how old this sample is Explain your reasoning Be sure class=