Technetium

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/technetium

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 Technetium?Synthesized in 1937 by Carlo Perrier and Emilio Segrè
2. How long is Technetium?Technetium-99 (Tc-99) with a half-life of 211,000 years
3. What is the atomic number?43
4. What is the primary medical isotope?Technetium-99m (Tc-99m) with a half-life of approximately 6 hours

Nucleosynthesis: The process by which new atomic nuclei are created in stars and during cosmic events.
Isotope: Atoms of the same element with varying numbers of neutrons, resulting in different atomic masses.
Half-life: The time required for half of the radioactive atoms in a sample to decay.
Radiopharmaceutical: A drug containing radioactive material used for medical diagnosis or therapy.