The half-life of a radioactive substance is 153 days. How long will it take for 120 grams of the substance to decay to 90 grams?

asked Jan 2, 2023 171k views

7 votes

The half-life of a radioactive substance is 153 days. How long will it take for 120

grams of the substance to decay to 90 grams?

by MrSpt

7.4k points

Please log in or register to add a comment.

11 votes

Answer:

After 30 days ( first half life) 120 /2 = 60 g decays and 60 g remains left.

Explanation:

JeffProd answered Jan 8, 2023

7.1k points

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

8.2m questions

10.8m answers