Question

1 point

14. A scientist is using potassium-40, which is a radioactive isotope of
potassium, to discover the absolute age of a fossil by radiometric dating.
The scientist determines that about three-fourths of the original
potassium-40 atoms in the fossil now remain in the fossil. What additional
information is necessary for the scientist to determine the absolute age of
the fossil? *
the half-life of potassium-40
O O
the identity of an index fossil
the atomic mass of potassium-40
the total mass of the fossil

Answer 1

I want 10 point lol the answer is 40

Answer 2

Answer: c. the ratio of the mass of potassium-40 to stable potassium isotopes

Step-by-step explanation: