Register
After two half lives how much of the original material has decayed
211k views
2 votes
After two half lives how much of the original material has decayed

User Noodl
by
4.4k points

2 Answers

5 votes

Answer:

I think that you need to divide the quantity of the substance in half twice.

User Leogama
by
5.5k points
9 votes

Explanation: After 1 half life , clearly HALF of the original isotope remains. And after TWO half-lives, a HALF + HALF of a HALF , i.e. 34 of the original mass has decayed.

User Joss Classey
by
5.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.3m questions

6.9m answers

Other Questions

An example of the interaction of the nervous and endocrine systems can be seen in our response to danger. The _______________ orders the adrenal glands to release the hormones epinephrine and norepinephrine,
When an individual stops breathing, brain cells die very quickly, but the cells in the heart are able to survive for longer. Which conclusion is best supported by these facts?
1. Nutrients move from the digestive system into the blood by traveling through ___________, tiny tubes sticking out of the wall of the small intestine. 2. In the body's excretory system, urea and water
Greg has been given a small sample of metal. His teacher has assigned him to identify what type of metal he was given. Which of the following is a physical property that will help Greg to identify the
When smaller molecules are bonded together to create larger ones, the smaller molecules are called _and the larger molecules that they build are called​
Link Copied!