By the end of the unit the students will be able to:

1 – Describe Bohr’s model of the atom, listing the differences between his model and the models that came before it. (2.1)

2 – Describe the current model of the atom (charge-cloud or Quantum Theory), listing the differences between this model and the models that came before it. (2.1)

3 – Using the concept of orbitals, describe the location of electrons within multi-electron atoms applying:

the Aufbau principle

Hund’s rule

Pauli’s exclusion principle

4 – Write the electron configurations for (any of the) elements in the first (five) rows of the periodic table, using:  (2.7)

            standard electron configuration notation

            orbital notation

            Nobel gas shorthand