*I can describe and explain the contributions that Thomson and Rutherford made to the development of the atomic theory.
*I can explain how Bohr's model differed from its predecessors.
*I can use Dalton's Atomic Theory to define an atom.
*I can compare the nucleus to the atom, and include size, mass and charge in the answer.
*I can explain the model of the atom, in terms of the relevance of the work of Dalton, Thomson, Bohr, and Rutherford.
*I can describe the mass, charge, and location of the proton, neutron, and electron.
*I can understand the relationship and meaning of atomic number and mass number.
*I can recognize isotopes of an element given number of subatomic particles, mass number, or shorthand notation.
*I can identify an element when given the number of protons, neutrons, and electrons.
*I can calculate the atomic mass number given percent abundance of naturally occurring isotopes.