which characteristic of potassium makes it useful for dating rocks? it has a long half - life. it decays at…
which characteristic of potassium makes it useful for dating rocks? it has a long half - life. it decays at an unknown rate. it produces lead as it breaks down. it can be used to date all types of rock
Answer
Brief Explanations:
Potassium - argon dating is a common radiometric dating method. Potassium - 40 has a long half - life of about 1.25 billion years, which allows it to date old rocks. It decays at a known rate to argon - 40 and calcium - 40. It doesn't produce lead on breakdown. Also, it can't date all types of rocks, mainly igneous and some metamorphic rocks.
Answer:
It has a long half - life.