Question

find the number of electrons, protons and neutrons inP3-​

Answer 1

Answer:

Answer

1.(i) Phosphorus atom.

2.Number of electrons = Atomic number = 15.

3.Number of protons = Atomic number = 15.

4.Number of neutrons = Mass number - Atomic number = 31 - 15 = 13.

5.(ii) Phosphide ion (P3-)

6.Phosphide ion (P3-) = Phosphorus atom + 3 electrons.

7.P3- = P + 3e-

Answer 2

Answer:

Number of electrons = Atomic number = 15

Number of protons = Atomic number = 15

Number of nutrons = Mass number - Atomic number = 31 -15= 13