Atomic Structure - Homework

1. What are the 3 subatomic particles that are found in an atom?

2. Identify the mass, charge, and location of a proton.

3. Identify the mass, charge, and location of an electron.

4. Identify the mass, charge, and location of a neutron.

5. Explain how to determine the number of protons and electrons in an atom of a specific element.

6. Explain how to determine the number of neutrons in an atom of a specific element.

7. What are valence electrons and why are the significant?

8. Explain how electrons make up a large amount of an atom’s volume, but not much of its mass.

9. The atomic number of an element is determined by which of the following?

• A. Number of electrons
• B. Number of neutrons
• C. Number of protons
• D. Number of protons and neutrons

10. The nucleus of an atom contains which of the following subatomic particles?

• A. Electrons
• B. Protons
• C. Neutrons
• D. Both B and C