The atoms ³¹₁₅P and ³²₁₆S have the same _____?

The atoms ³¹₁₅P and ³²₁₆S have the same _____?

Explanation

Let's calculate the number of protons, neutrons, and electrons for both atoms:

³¹₁₅P (Phosphorus)

  •     Protons: 15
  •     Neutrons: 31 - 15 = 16
  •     Electrons (neutral atom): 15

³²₁₆S (Sulfur)

  •     Protons: 16
  •     Neutrons: 32 - 16 = 16
  •     Electrons (neutral atom): 16

Both atoms have the same number of neutrons (16).