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6. How can the electronic configuration be abbreviated?

  • to show just the outer shell of the element
  • to show just the inner shell of the element
  • it can not be abbreviated
  • to show the last half of its electronic configuration

7. What would be the electronic configuration of an iron Fe, atom and an iron 2+ ion, Fe2+?

  • the electronic configuration of an iron atom would be the same as that of an iron 2+ ion
  • Atom: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6 Fe2+ ion: 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6
  • Atom: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6 Fe2+ ion: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^4

8. When negative ions are formed, what happens to the electrons in the highest energy orbitals?

  • the number of electrons is doubled
  • electrons are removed
  • electrons are added
  • the number of electrons stays the same

9. What affect does the principal quantum number n, have on the energy level and distance of the shell from the nucleus?

  • the principal quantum number has no affect on the energy level or distance of the shell from the nucleus
  • the larger the value of the principal quantum number , the higher the energy level and the further the shell from the nucleus
  • the larger the value of the principal quantum, the lower the energy level and the closer the shell is to the nucleus
  • the larger the value of the principal quantum number, the higher the energy level and the closer the shell is to the nucleus

10. When does the 4p orbital begin to fill?

  • after the 4s orbital is full
  • after the 3d orbital is full
  • before the 3d orbital is full
  • after the 4s sub-shell is full

11. The Periodic Table is structured in blocks of 2,6,10 and 14 elements, linked to....

  • sub-shells
  • atoms
  • orbitals
  • shells

12. Using the structured blocks, you can work out the electronic configurationof any element using the Periodic Table. Oxygen is the 4th element in the 2p-block. What would be its electonic configuration?

  • (^ indicates subscript) 1s^2 2s^2 2p^4
  • 1s^2 1s^2 2p^4
  • 1s^2 2s^2 2p^6
  • 1s^2 2s^2 2p^3