Privacy and Security Notice

Jefferson Lab
Jefferson Lab HomeSearchContact JLab
Science Education
----------------------
Science Education HomeTeacher ResourcesStudent ZoneGames and PuzzlesPrograms and EventsSearch Education
Questions and Answers

How many times bigger is a proton than an electron?

It depends on what you mean by bigger. A proton is about 1835 times more massive than an electron. If you are asking about their physical dimensions - no one knows. Scientists currently do not know how small electrons are. They are smaller than we can currently measure and may not have a size at all!

Author:

Steve Gagnon, Science Education Specialist (Other answers by Steve Gagnon)

This page is maintained by Steve Gagnon.

Citation and linking information