Final answer:
Charge in atoms is determined by the difference between protons and electrons, resulting in electrically neutral atoms or ions with a net charge.
Explanation:
Charge can be described as the difference between protons and electrons in an atom, resulting in a net electric charge.
Atoms are electrically neutral when they contain an equal number of protons and electrons, but when this balance is disrupted, ions with a net charge are formed.
The SI unit for charge is the coulomb, where protons and electrons have opposite charges with equal magnitudes.
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