CHAPTER 3: Electrons in Atoms

CHAPTER 3: Electrons in Atoms

  • Sub-shells and Atomic Orbitals
  • Electronic Configuration
  • Ionisation Energy

 

 

Learning outcomes:

 

  • describe the number and relative energies of the s, p and d orbitals for the principal quantum numbers 1, 2 and 3 and also the 4s and 4p
  • describe the shapes of s and p
  • state the electronic configuration of atoms and ions given the proton number (and charge), using the convention 1s²2s²2p
  • (i) explain and use the term ionisation
    • explain the factors influencing the ionisation energies of
    • explain the trends in ionisation energies across a Period and down a Group of the Periodic
  • deduce the electronic configurations of elements from successive ionisation energy
  • interpret successive ionisation energy data of an element in terms of the position of that element within the Periodic