Study Guide for Test #2 * Lab Equipment, Scientific Method, and

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Study Guide for Test #2 – Chemistry
Test on Friday, May 24, 2013
You should study all notes, handouts, quizzes, and homework assigned prior to this
exam. Check the website for any extra information you could use to study. If you have
questions, either see me or e-mail me your concerns.
Know the following key words and concepts:
Atom
Element
Compound – multiple elements
Molecule – multiple atoms
Protons
Neutrons
Electrons
Atomic mass
Bohr model of an atom
Electron dot diagram
Periods
Groups/families
Neutral – equal number of protons and electrons
Charge – either positive or negative – unequal number of protons and neutrons
Ion
Covalent bonds – sharing electrons
Orbitals/shells – know how many electrons per shell
Solid
Liquid
Gas
Atomic number
Know how to find number of protons, neutrons, electrons
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