DonnetteLedoux
Answered

5 All phosphorus atoms have the same(1) atomic number
(2) mass number
(3) number of neutrons plus the number of electrons
(4) number of neutrons plus the number of protons



Answer :

PoKyuSoon
It is Answer (1) Atomic Number,because even though all phosphorus atoms have different ion charges it still holds the atomic number of 15.

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