كيف تصبح الذرة متعادلة كهربائيا ؟

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للذرة كهرباء ويجب أن تكون متعادلة حتىتكون مستقرة وإلا اتحدت مع مركبات أخرى ، الإلكترونات سالبة الشحنة والنيوترونات موجبة الشحنة لهذا دائما يكون عدد الإلكترونات يساوي عدد النيوترونات .

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