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 Study Guide:  Modern Atomic Theory

Chemistry I Honors: Chapters 4 and 5

Students should be able to...

(Multiple Choice)


  • Find electron configurations, both longhand and shorthand, for elements and ions

  • Draw orbital diagrams for elements and ions

  • Know d4 and d9 exceptions. (HONORS ONLY)

  • Know the direction and reasoning behind periodic trends: atomic radius, ionic radius, 1st ionization energy, and electronegativity


  • Observe visible light emissions of excited electrons

  • Observe various wavelengths of light and spectral lines (Virtual Lab)

    Practice Problems

    1. Write the diagonal rule.
    2. Write the complete electron configuration (longhand) for Li, Li+, Ar, Cr, Cu, and Se-2
    3. Write the shorthand configuration for I, W, Au, Bi+3, and O-2
    4. Draw the orbital diagram for N-3, V, Cu, and S-2
    5. Pick the largest atom: H or K
    6. Pick the smallest atom: K or Cr
    7. Pick the largest first ionization energy: Be or Mg
    8. Pick the largest first ionization energy: Si, S, or Cl
    9. Pick the smallest electronegativity: Te, Se, or O
    10. Pick the largest electronegativity: Al, Si, or S
    11. Pick the larger: K or K+
    12. Pick the smaller: Cl or Cl-
    13. Explain why Sr is smaller than Rb.
    14. Explain why Cs is larger than Na.


Last updated on October 3, 2019 1:17 PM