1. The task is to calculate the number of protons, neutrons, and electrons for various elements based on their atomic number and mass number.
2. Protons = Atomic Number (given in the table).
3. Neutrons = Mass Number - Atomic Number.
4. Electrons = Protons (for neutral atoms, as stated in the instructions).
5. Apply these rules to each row:
- Sodium: Protons=11, Neutrons=23-11=12, Electrons=11.
- Chlorine: Protons=17, Neutrons=35-17=18, Electrons=17.
- Calcium: Protons=20, Neutrons=40-20=20, Electrons=20.
- Technetium: Protons=43, Neutrons=98-43=55, Electrons=43.
- Tin: Protons=50, Neutrons=120-50=70, Electrons=50.
- Iodine: Protons=53, Neutrons=127-53=74, Electrons=53.
- Barium: Protons=56, Neutrons=137-56=81, Electrons=56.
- Tungsten: Protons=74, Neutrons=184-74=110, Electrons=74.
- Mercury: Protons=80, Neutrons=201-80=121, Electrons=80.
- Radon: Protons=86, Neutrons=222-86=136, Electrons=86.
- Uranium: Protons=92, Neutrons=238-92=146, Electrons=92.
- Americium: Protons=95, Neutrons=243-95=148, Electrons=95.
Parent Tip: Review the logic above to help your child master the concept of protons neutrons and electrons practice worksheet answers.
