The Structure of the Atom Quiz
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5 questions, one answer each
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1. What is the relative charge of a neutron?
- A. +1
- B. 0
- C. -1
- D. +2
2. Where in an atom are protons and neutrons found?
- A. In the outer shells
- B. In the nucleus
- C. Spread evenly throughout the atom
- D. In the electron cloud only
3. Why is an atom electrically neutral overall?
- A. It has no protons
- B. It has no electrons
- C. The number of protons equals the number of electrons
- D. Neutrons cancel out the protons
4. What does the mass number of an atom represent?
- A. Number of protons only
- B. Number of electrons only
- C. Number of protons plus neutrons
- D. Number of neutrons only
5. An atom has 20 protons and a mass number of 40. How many neutrons does it contain?
- A. 20
- B. 40
- C. 60
- D. 0