Register
A sample of pure radioactive isotope is left to decay. After 40.0 days, the 1 point sample is placed in a mass spectrometer, and it is determined that only 25% of the original isotope remains. How long
14.2k views
25 votes
A sample of pure radioactive isotope is left to decay. After 40.0 days, the 1 point

sample is placed in a mass spectrometer, and it is determined that only
25% of the original isotope remains. How long is the half-life?

User Malcolm Anderson
by
5.3k points

1 Answer

1 vote

Answer:

6 months and 1 day

Step-by-step explanation:

User Jesse Merriman
by
5.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.0m questions

7.8m answers

Other Questions

What forces can be classified as intramolecular
How many pounds in a 3.00 l bottle of drinking water?
Write the parts of the electromagnetic spectrum in order from lowest frequency to highest frequency
Which processes produce solute ions in a solution? A) Dissociation and Dispersion B) Ionization and Dissociation C) ionization and Dispersion
Explain why we must balance all chemical equations.
Link Copied!