Multiple Choice
In a simplified model of subatomic particles, what is the relative mass of an electron compared with a proton (proton )?
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4. Atoms and Elements
Subatomic Particles (Simplified)
Multiple Choice
In a neutral atom, what is the electrical charge of a proton?
A
(positive)
B
(neutral)
C
(double positive)
D
(negative)
Verified step by step guidance1
Recall that an atom consists of protons, neutrons, and electrons. Protons are positively charged particles found in the nucleus.
Understand that the electrical charge of a proton is a fundamental property and is always positive, specifically +1 in elementary charge units.
Recognize that neutrons have no charge (neutral), and electrons have a negative charge of -1.
Since the problem asks about the charge of a proton in a neutral atom, remember that the atom's overall neutrality means the number of protons equals the number of electrons, but the proton's charge itself remains +1.
Therefore, the correct choice corresponds to the proton having a charge of +1 (positive).
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