Energy Levels Quiz
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5 questions, one answer each
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1. What is another name for an atom's energy levels?
- A. Nuclei
- B. Isotopes
- C. Shells
- D. Ions
2. How do electrons fill the available energy levels?
- A. Randomly
- B. Highest level first
- C. Lowest available level first
- D. All levels equally at once
3. What is the electronic structure of sodium (atomic number 11)?
- A. 2,8,1
- B. 2,9
- C. 1,8,2
- D. 2,8
4. An atom has electronic structure 2,8,7. What is its atomic number?
- A. 15
- B. 16
- C. 17
- D. 18
5. Why do elements in the same periodic table group have similar chemical properties?
- A. They have the same number of neutrons
- B. They have the same number of protons
- C. They have the same number of electrons in their outer shell
- D. They have the same relative atomic mass