radioactive decay of 40k in an igneous rock has resulted in a ratio of 25 percent 40k atoms to 75 percent of 40ar and 40ca atoms. How many years old is this rock?

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Feb 18, 2017 44.5k views

0 votes

radioactive decay of 40k in an igneous rock has resulted in a ratio of 25 percent 40k atoms to 75 percent of 40ar and 40ca atoms. How many years old is this rock?

Advanced Placement (AP)
high-school

Danielorn asked

by Danielorn

8.4k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

1 vote

They Are 40k btw your welcome

Htorque answered Feb 25, 2017

by Htorque

8.1k points

0 Comments

Please log in or register to add a comment.

Ask a Question

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

Other Questions