Name: _____________________________
Period: ________
Model History Reading and
Researching
Erwin Schrödinger | 1926
Erwin Schrödinger was an Austrian physicist. He developed the “Electron Cloud Model” of the
atom. According to his model, an atom has a dense nucleus surrounded by a cloud of electrons.
He worked together with mathematicians to figure out where the electrons were most LIKELY to
be found and we call those spots orbitals.
It is still impossible to see a single atom, even with the world’s best microscopes, but we can see
images of small groups of atoms, and the trails that they leave. Starting in the 1950’s,
experiments using the newly invented particle accelerators and particle detectors opened up a
new age of “Particle Physics”. Through the last half century individual particles were identified
by teams of researchers in special facilities around the world. Scientists are still working on
discovering particles that will help support a Standard Model.
1. What is the name of his model? ________________________________________________
2. What is at the center of an atom? _______________________________________________
3. Clouds showing where an electron is most likely to be are called ______________________
4. Can we see atoms? Explain. ___________________________________________________
__________________________________________________________________________
5. What about atoms are scientists working on right now? _____________________________
Name
Important Words
Biography
Experiment
Discovery
Sketch
John Dalton
J. J. Thompson
Lord Ernest
Rutherford
Neils Bohr
Erwin Schrödinger
You don’t have to use sentences. You can just make bullet point lists in each box. (Except the sketch. In that box you have to sketch his model.)