Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Pricing Schools Business

5 Questions

0 Views

Radioactive Decay of Carbon-14 Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

How is the decay of Carbon-14 represented on the graph?

As a constant rate of decay

As an exponential decay curve (correct)

As a stepwise function

As a linear function

If a sample has 96.875% daughter atoms, what can be inferred about its age?

It is approximately 15,000 years old

It is less than 10,000 years old

It is more than 50,000 years old

It is between 25,000 to 30,000 years old (correct)

What is the significance of the y-axis in the graph of Carbon-14 decay?

It represents the total number of atoms

It measures time in years

It counts the number of half-lives gone by

It shows the percentage of Carbon-14 atoms remaining (correct)

Which of the following statements about half-lives of Carbon-14 is true?

<p>Each half-life decreases the amount of parent atoms by 50% (A)</p> Signup and view all the answers

What result would you expect if only one half-life had passed, based on initial Carbon-14 atoms?

<p>50% remaining (A)</p> Signup and view all the answers

Flashcards

Half-life

The time it takes for half of the radioactive atoms in a sample to decay.

Carbon-14

A radioactive isotope of carbon with a half-life of approximately 5,730 years.

Radioactive decay

The process where a radioactive atom loses energy and transforms into a different element by emitting radiation.

Parent atom

The remaining amount of the original radioactive substance in a sample after a certain time.

Signup and view all the flashcards

Daughter atom

The new element formed after the decay of a radioactive element.

Signup and view all the flashcards

Study Notes

Radioactive Decay of Carbon-14

A rock contains 3.125% parent Carbon-14 atoms and 96.875% daughter atoms.
To determine the number of half-lives that have passed, find the percentage of original Carbon-14 remaining on the graph.
The graph shows that 3.125% of the original Carbon-14 remains after 2 half-lives.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your understanding of the radioactive decay of Carbon-14, particularly in determining the number of half-lives that have passed based on the remaining percentage. This quiz will challenge your knowledge of radioactive isotopes and their decay processes.