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Question
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:
4 protons and 8 electrons →
Solution
4 protons and 8 electrons → (+4) + (−8)
= +4 – 8
= −4
⇒ 4 electrons ⊖⊖⊖⊖
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