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In [[physics]], subatomic '''particles''' are the particles composing nucleons and [[atoms]]. There are two types of subatomic particles: [https://en.wiki

The '''nucleus''' of an [[atom]] is the very dense region, consisting of nucleons ([[protons]] and [[neutrons]]), at the center of an atom. Almost all of the

...only act at very short distances and are responsible for holding certain [[nucleons]] and compound nuclei together. The electromagnetic force acts between [[e