At the end of this activity, students should be able to: û give short descriptions of models of the atom according to Thomson and Rutherford û name the components of the nucleus and determine their charges û describe spectrum analysis û state Bohr's postulates û calculate the radius of the n-th orbit in an atom of hydrogen, given the radius of the first orbit û calculate the energy (in electronvolts) of an electron located in the n-th orbit and the energy emitted or absorbed when the electron moves from one orbit to another û explain the symbolic notation of a nucleus û give the definition of an isotope.

Originally released by Learnetic, 2016.