What are the particles with the smallest relative mass that moves around the nucleus?

1 Answer
anor277
Jun 22, 2018

You are looking for #"electrons"# but I really think you should read a text.

Explanation:

Electrons are conceived to whizz about a massive nuclear core, and #"mass"_"electron"=9.11xx10^-31*kg#. The protonic mass is #1.67xx10^-27*kg#...i.e. 4 orders of magnitude more massive.

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