Becquerel

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/becquerel

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the discoverer of radioactivity?Henri Becquerel, whose work led to the naming of the unit
2. What is the related concepts?Radioactivity, radionuclide, nuclear decay, SI units, half-life
3. Why is the becquerel named after Henri Becquerel?It is named after Henri Becquerel because he first discovered that some materials, like uranium, emit invisible rays on their own, which started the study of radioactivity.
4. How do scientists use becquerels in medicine?In nuclear medicine, doctors use becquerels to measure how much radioactive medicine a patient receives, making sure the dose is safe and helps doctors see inside the body.

Radioactivity: The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
Radionuclide: An atom with an unstable nucleus that undergoes radioactive decay, emitting radiation.
Decay Constant (λ): A measure of the probability per unit time that a nucleus will decay, unique to each radionuclide.