CHEM 151 Chapter Focus areas 1A-2D: Chemical Principles Textbook Notes, COMPLEX TOPICS SIMPLY EXPLAINED, (bonds, atoms, quantum physics, wave functions)

• School: Rice University
• Department: Chemistry
• Course: CHEM 151
• Professor: Whitmire

Document Summary

Atoms are made up of 3 subatomic particles - protons, neutrons, and electrons. Rays emitted when a high voltage is applied between 2 metal electrodes in an evacuated glass tube. A metallic conductor that touches an electrolyte in a cell. An ionic compound that conducts electricity as a liquid. Believed atoms were whole spheres with no subatomic particles. Realized that electrons exist in all atoms, measured e/m?e , proposed the plum pudding model. Rutherford shot alpha particles at atoms and some were deflected disproving the plum pudding model; proved that every atom had a nucleus which contained all its protons and most of its mass. Conducted the oil droplet experiment and found the value of an electron"s charge. The value of e; -e is the charge of an electron. Nuclear model of an atom atoms have a nucleus which contains the protons and majority of mass, lots of empty space, and scattered electrons.