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प्रश्न
An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:
5 electrons and 3 protons →
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उत्तर
5 electrons and 3 protons → −5 + 3 = −2 that is 2 electrons ⊖⊖
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