Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose a sample contains 4 atoms of krypton-85 and 12 atoms of rubidium-85. About how old is the sample?

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Feb 12, 2022 63.9k views

2 votes

Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose

a sample contains 4 atoms of krypton-85 and 12 atoms of rubidium-85.
About how old is the sample?

English
high-school

KayoticSully asked

by KayoticSully

7.5k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

1 vote

Answer:

It’s 21.52 years

Step-by-step explanation:

I just took the test

Mildre answered Feb 17, 2022

by Mildre

7.7k points

0 Comments

Please log in or register to add a comment.

Ask a Question

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

8.4m questions

11.0m answers

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

Other Questions