James Chadwick

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/james-chadwick

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. When was James Chadwick born?October 20, 1891
2. When did James Chadwick die?July 24, 1974 (age 82)
3. Where was James Chadwick born?Bollington, Cheshire, England
4. Who was James Chadwick?James Chadwick was a brilliant British scientist who lived from 1891 to 1974. He discovered the neutron, a tiny particle that changed how we understand atoms.
5. What is a neutron?A neutron is a small, neutral particle inside the nucleus of an atom. It has almost the same mass as a proton but carries no electric charge.

Neutron: A subatomic particle found in the nucleus of atoms, possessing no net electric charge and a mass approximately equal to that of a proton.
Atomic Nucleus: The central core of an atom, composed of protons and neutrons, containing most of the atom's mass.
Nuclear Fission: A nuclear reaction in which a heavy nucleus splits into two or more smaller nuclei, releasing a large amount of energy.
Isotopes: Atoms of the same element that have different numbers of neutrons, and thus different masses.