You will look closely at the inner structure of atoms. Follow our understanding of atomic structure from the ancient Greeks who deduced the existence of atoms through to the major experiments that revealed details of their structure. Even perform some of these key experiments yourself.
After completing this tutorial, you will be able to complete the following:
What was a problem with the Rutherford atom model?
~ The model did not explain why the electromagnetic beams absorbed and emitted by hydrogen atoms were intermittent.
What claim did the Bohr model make?
~ The Bohr model claimed that electrons circle around the nucleus only in certain orbits, similar to the way in which the planets circle the sun.
What details was the Bohr model missing?
~ The details missing from the Bohr model were that atoms are three-dimensional, that the location of electrons can't be known for certain, and that electrons show the properties of both particles and waves.
With the help of Erwin Schrödinger, what did scientists eventually notice about electrons?
~ Electrons circle atoms within orbitals, and not in specific orbits. These orbitals have certain levels of energy.
|Approximate Time||2 Minutes|
|Pre-requisite Concepts||Students should understand the following terms: Bohrs model, de Broglie, and Heisenberg.|
|Type of Tutorial||Animation|
|Key Vocabulary||Bohrs model, de Broglie, Heisenberg|