R-process

High school (ages 12+)
Space & Astronomy

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/r-process

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 nucleosynthesis process?Rapid neutron capture process (R-process)
2. What is the primary astrophysical sites?Neutron star mergers and core-collapse supernovae; potentially collapsars and magnetars
3. What is the R-process and why is it called "rapid"?The R-process is a way that atomic nuclei grab neutrons very quickly, faster than they can change into other atoms. This fast grabbing builds up very heavy elements like gold and uranium.
4. How do exploding stars make gold and other heavy metals?When stars explode or collide, they release huge amounts of neutrons. These neutrons are captured by other nuclei so quickly that new, heavier atoms are formed, and those atoms become the gold and other metals we find in jewelry and on Earth.

Nucleosynthesis: The process by which new atomic nuclei are created from pre-existing nucleons and nuclei.
Neutron Star Merger: The collision and fusion of two neutron stars, a highly energetic event producing heavy elements.
Isotope: Atoms of the same element that have different numbers of neutrons, thus different atomic masses.