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A material becomes negatively charged when it gains excess electrons, which are negatively charged subatomic particles. This can occur through processes such as friction, where electrons are transferred from one material to another, or through chemical reactions that result in the addition of electrons to an atom or molecule. As a result, the material's overall charge becomes negative due to the imbalance between the number of protons (positively charged) and electrons.

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AnswerBot

3w ago

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