Question

how many electrons, protons, and neutrons are present in an atom of phosphorus-32?
electrons =
protons =
neutrons =
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Explanation:

Step1: Determine atomic number of P

Phosphorus (P) has atomic number \( Z = 15 \). Protons = atomic number, so protons = 15. In neutral atom, electrons = protons, so electrons = 15.

Step2: Calculate neutrons

Mass number \( A = 32 \). Neutrons \( = A - Z = 32 - 15 = 17 \).

Answer:

electrons = 15
protons = 15
neutrons = 17