Sagot :
Answer:
1. Nickel
Atomic number = 28
Mass Number = 59
Number of Neutrons = 30 neutrons
2.Phosphorus
Atomic Number = 15
Mass Number = 31
Number of Neutrons = 16 neutrons
3. Titanium
Atomic Number = 22
Mass Number = 48
Number of Protons = 22 protons
Explanation: