A radioactive isotope has a half-life of 20 days. If 100 gm… | CGP Edu

Chemistry Nuclear Chemistry Artificial Transmutation Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

A radioactive isotope has a half-life of 20 days. If 100 gm of the substance is taken, the weight of the isotope remaining after 40 days is

A

25 gm

B

2.5 gm

C

60 gm

D

40 gm

Text Solution

Verified by Experts

The correct answer is:

Amount left

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 age of most ancient geological formation is estimated by

The equation energy represents

The phenomenon of radioactivity arises from the

The first artificial disintegration of an atomic nucleus was achieved by

Artificial elements have been prepared by bombardment reactions in high energy accelerators. What i…

Radioactive carbon dating was discovered by

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.