A sample of rock is found to contain 100 grams of a parent isotope. How many grams of the parent isotope will remain after two half-lives? 100 75 50 25

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Jun 22, 2018 24.8k views

0 votes

A sample of rock is found to contain 100 grams of a parent isotope. How many grams of the parent isotope will remain after two half-lives?

100

75

50

25

Biology
high-school

Sven Dhaens asked

by Sven Dhaens

8.1k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

2 Answers

5 votes

Answer:

25 grams

Step-by-step explanation:

If you see only

100 and 25 then it's 25

Gilles Radrizzi answered Jun 24, 2018

by Gilles Radrizzi

9.0k points

0 Comments

Please log in or register to add a comment.

3 votes

the answer is 50. I really hope this helps.

Yves Baumes answered Jun 28, 2018

by Yves Baumes

8.2k points

0 Comments

Please log in or register to add a comment.

← Prev Question Next Question →

No related questions found

Ask a Question

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

9.4m questions

12.2m answers

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

2 Answers

0 Comments

Please log in or register to add a comment.

0 Comments

Please log in or register to add a comment.

No related questions found

Other Questions