Multiple Choice
How many protons are in an atom of phosphorus (P)?
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4. Atoms and Elements
Subatomic Particles (Simplified)
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What is the electrical charge of a proton?
A
(positive, equal in magnitude to the electron’s charge)
B
(neutral)
C
(double positive charge)
D
(negative)
Verified step by step guidance1
Recall that the electrical charge of subatomic particles is a fundamental property that determines how they interact electromagnetically.
Understand that a proton is a positively charged particle found in the nucleus of an atom.
Know that the magnitude of the proton's charge is equal to the magnitude of the electron's charge but with opposite sign.
Express the proton's charge as +1 in elementary charge units, where the elementary charge e is approximately 1.602 \times 10^{-19} coulombs.
Therefore, the electrical charge of a proton is +1 (positive), which is equal in magnitude but opposite in sign to the electron's charge.
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