4
AssignmentMultiple Choice

Dual Nature of Light

Question 4 • Crowley Credit Recovery Physics B

In an electrically neutral atom, the number of

Answer
A
protons equals the number of neutrons.
B
protons equals the number of electrons.
C
neutrons equals the number of electrons.

Explanation

Protons have a positive charge, and electrons have an equal-sized negative charge. For an atom to be electrically neutral, these charges must balance, so it must have the same number of protons as electrons. The number of neutrons can vary and does not determine the atom’s electrical charge.

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