Q. All phosphorus atoms have the same
A) Number of neutrons plus the number of electrons
B) Mass number
C) Number of neutrons plus the number of protons
D) Atomic number
✔ Correct Answer: Atomic number
Exam Insight
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A) Number of neutrons plus the number of electrons
B) Mass number
C) Number of neutrons plus the number of protons
D) Atomic number
✔ Correct Answer: Atomic number
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