In a neutral atom, the number of electrons is equal to the number of what?

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Multiple Choice

In a neutral atom, the number of electrons is equal to the number of what?

Explanation:
Charge balance in a neutral atom: to have no overall charge, the positive charge from protons must be exactly canceled by the negative charge from electrons, so their numbers are equal. Neutrons are electrically neutral and don’t affect the charge balance, and the mass number is the sum of protons and neutrons, not electrons. Therefore, in a neutral atom, the number of electrons equals the number of protons.

Charge balance in a neutral atom: to have no overall charge, the positive charge from protons must be exactly canceled by the negative charge from electrons, so their numbers are equal. Neutrons are electrically neutral and don’t affect the charge balance, and the mass number is the sum of protons and neutrons, not electrons. Therefore, in a neutral atom, the number of electrons equals the number of protons.

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