atomic particle
nounUK /əˈtɒm.ɪk ˈpɑː.tɪ.kəl/
US /əˈtɑː.mɪk ˈpɑːr.t̬ɪ.kəl/
A tiny piece that makes up everything around us.
The scientist studied each atomic particle under a powerful microscope.
OTHER MEANINGS
2. A very small part of an atom, such as a proton, neutron, or electron.
Electrons are atomic particles that carry a negative charge.
3. Any tiny unit of matter studied in physics.
The lab detects atomic particles moving at high speed.
4. A basic building block in a scientific model of matter.
In the lesson, students learned that an atomic particle is smaller than an atom.