183k views
13 votes
Element X is a radioactive isotope such that every 81 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 1800 grams, how much of the element would remain after 28 years, to the nearest whole number?​

2 Answers

8 votes

Answer:

Explanation:

User Adam Tindale
by
4.6k points
1 vote

Answer:

15?

Explanation:

User Ewald
by
4.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.