CHEM 201 Study Guide - Midterm Guide: Valence Electron, Ion, Aufbau Principle
Document Summary
Electrons are the particles in the atom are responsible for the production of colour. Heat is needed to energize the electrons (aka. E = n x h x f n = principle quantum number. E = n x h x c/ h = plank"s constant f = frequency. Light has also particle properties particles of light are called photons. An atom emits light by giving out distinct lines on the visible region of the spectrum. Electrons are confirmed to orbits corresponding to particular energy levels (shells) Limitations of bohr"s model = only works with atoms that have only one electrons. Used to say what atoms are present in a sample and how much of that atom is present. 1920 louis de broglie hypothesized that matter is also a wave. = h / (m x v) h = plank"s constant = 6. 626 x 10-34 m = mass ; me- = 9. 1094 x 10-31 kg v = velocity.
