Subatomic Particle Review

Subatomic Particles Review

Finding Protons and Electrons

• Protons and Electrons in Neutral Atoms:
  Each neutral atom has an equal number of protons and electrons equal to their atomic number.

1. Nickel (Ni):

   • Atomic Number: 28
   • Protons: 28
   • Electrons: 28

2. Argon (Ar):

   • Atomic Number: 18
   • Protons: 18
   • Electrons: 18

3. Iron (Fe):

   • Atomic Number: 26
   • Protons: 26
   • Electrons: 26

4. Chlorine (Cl):

   • Atomic Number: 17
   • Protons: 17
   • Electrons: 17

5. Sodium (Na):

   • Atomic Number: 11
   • Protons: 11
   • Electrons: 11

6. Carbon (C):

   • Atomic Number: 6
   • Protons: 6
   • Electrons: 6

Calculate the Neutrons

• Formula:
  Neutrons = Mass Number - Atomic Number

1. Nitrogen:

   • Atomic Mass: 14.007
   • Atomic Number: 7
   • Neutrons: 14 - 7 = 7

2. Aluminum:

   • Mass Number: 27 (assumed as actual value not provided)
   • Atomic Number: 13
   • Neutrons: 27 - 13 = 14

3. Boron:

   • Atomic Mass: 10.81
   • Atomic Number: 5
   • Neutrons: 11 - 5 = 6 (assuming round off of mass number)

4. Potassium:

   • Mass Number: 39 (assumed value)
   • Atomic Number: 19
   • Neutrons: 39 - 19 = 20

Summary of Key Terms

• Atomic Number (Z):
  • Number of protons in the nucleus of an atom.
• Mass Number (A):
  • Total number of protons and neutrons in the nucleus.
• Neutrons:
  • Found by subtracting the atomic number from the mass number.

Example Template for Elements

• Element Name:
  • Atomic Number: __
  • Mass Number: __
  • Number of Protons: __
  • Number of Neutrons: __
  • Number of Electrons: __