A collection of two or more atoms held together by chemical bonds.
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What is a Compound?
A substance formed by the chemical union of two or more elements.
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What is an Electron?
Electrons are the negatively charged particles of atom. Together, all of the electrons of an atom create a negative charge that balances the positive charge of the protons in the atomic nucleus.
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What is a Proton?
A particle in the nucleus of an atom with a positive electric charge.
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