Describe the molecular geometry of suggested by each of the following methods: (a) Lewis theory; (b) valence-bond method using simple atomic orbitals; (c) VSEPR theory; (d) valence-bond method using hybridized atomic orbitals.
Thursday, September 8, 2016 Chapter 2 (Week 2) CHE 152 - Rutherford’s gold foil experiment A beam of alpha particles was shot at a screen that had fluorescent dye, and • particles would hit it. The screen would then emit light • Rutherford put gold foil in front of the beam and he saw that there were sometimes flashes of light at the screen, despite the foil • Conclusions - Most of an atom’s mass and most of its positive charge is contained in a small core called the nucleus - Most of an atom's volume is empty space - Negatively charged particles are distributed in the space around the nucleus - Atoms are electrically neutral • the number of positive charges = t
