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Electronic structure of atoms

  1. Electronic structure of atoms
  2. Learning objectives Electronic configurations of atoms Ionisation energies as evidence for electron shells Emission spectra (and flame tests) as evidence for electron shells Sublevels and atomic orbitals
  3. Periods and shells are the same thing A. True B. False
  4. Given the simple electronic configuration 2,8,6: What period is the atom in? A. Period 1 B. Period 2 C. Period 3 D. Period 4
  5. Given the simple electronic configuration 2,8,6: What group is the atom in? A. Period 1 B. Period 2 C. Period 3 D. Period 4
  6. Given the simple electronic configuration 2,8,6: Which atom is it? A. Sodium B. Selenium C. Sulfur D. Silicon
  7. How can we make sodium chloride?
  8. Which element in period 3 has first six ionization energies of: 789 1577 3232 4356 16091 19785 kJ mol-1 A. Magnesium B. Aluminium C. Silicon D. Phosphorus
  9. Which element has the highest first ionisation energy?
  10. Which element gives a white flame test colour? A. Lithium B. Sodium C. Magnesium D. None of the above
  11. Why does magnesium not have a flame test colour? A. No orbtital-orbital transitions B. It does, it is white C. The ionisation energy is too high D. They are not in the visible part of the spectrum
  12. Which of these is the sub-shell level electron configuration of 15P? A. 1s22s22p63s23p3 B. 1s22s22px 22py 22pz 2 3s23px 13py 13pz 1 C. 1s22s22p63s23p5 D. 1s22s22px 22py 22pz 2 3s23px 23py 23pz 1
  13. Which of these is the orbital level electron configuration of 17Cl? A. 1s22s22p63s23p3 B. 1s22s22px 22py 22pz 2 3s23px 13py 13pz 1 C. 1s22s22p63s23p5 D. 1s22s22px 22py 22pz 2 3s23px 23py 23pz 1
  14. Which of these elements has the highest first ionisation energy? A. Boron B. Carbon C. Nitrogen D. Oxygen
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