A radioactive isotope has a half-life of 10 days. If today … | CGP Edu

Chemistry Nuclear Chemistry Rate of Decay and Half-life Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

A radioactive isotope has a half-life of 10 days. If today is left over, what was its original weight 40 days earlier

A

2 g

B

600 mg

C

1 g

D

1.5 g

Text Solution

Verified by Experts

The correct answer is:

.

Previous Question Next Question

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

The half-life period of a radioactive substance is 8 years. After 16 years, the mass of the substan…

The atomic mass of an element is 12.00710 amu. If there are 6 neutrons in the nucleus of the atom o…

Half-life period of a metal is 20 days. What fraction of metal does remain after 80 days

In the radioactive decay , how many and - particles are ejected from to form

Which of the following does not take place by - decay

of a radioactive isotope was found to reduce to after 24 hours. The half-life of the isotope is

CG

CGP Question Assistant Question Bank + AI Help

Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.

Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.