Gadolinium

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/gadolinium

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. Who discovered Gadolinium?1880 by Jean Charles de Marignac
2. How tall is Gadolinium?Improves workability and oxidation resistance of alloys
3. What is the isolated?1935 by Félix Trombe
4. What is the curie temperature?20 °C (68 °F)
5. What is gadolinium and why does it have magnetic powers?Gadolinium is a shiny, silvery metal that is part of the lanthanide family. Below 20 °C it becomes ferromagnetic, meaning it strongly attracts magnets, and above that temperature it is very paramagnetic because of its unpaired electrons.
6. How is gadolinium used in MRI scans?Doctors use gadolinium ions as a contrast agent in MRI machines. The metal helps the machine create clearer pictures of the inside of the body.

Lanthanide Series: A group of 15 metallic chemical elements with atomic numbers 57 through 71.
Ferromagnetic: Materials that can be strongly magnetized, like iron.
Chelation: The process of binding a metal ion to a larger molecule, often to reduce toxicity.