Chemistry OCR 1.2.4 Electrons and the Periodic Table

HideShow resource information

1. 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
1 of 12

Other questions in this quiz

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

  • shells
  • sub-shells
  • orbitals
  • atoms

3. What affect does the principal quantum number n, have on the energy level and distance of the shell from 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
  • the larger the value of the principal quantum number , the higher the energy level and the further 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, the lower the energy level and the closer the shell is to the nucleus

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

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

5. What is the relationship between the 4s sub-shell and the 3d sub-shell?

  • the 4s sub-shell has a lower energy level then the 3d sub-shell
  • they have no relationship
  • the 4s sub-shell has equal energy level to the 3d sub-shell
  • the 3d sub-shell has a lower energy than the 4s sub-shell

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all The Periodic Table resources »