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What is chemistry? What is matter? Physical vs. Chemical Properties o Identify Properties and classify them as physical or chemical Density – Definition, Formula, GRASS calculations Atomic Theories o Scientists and Models Atoms o Subatomic particles o Standard Atomic Notation o Calculating the number of p+, e-, n0 Bohr-Rutherford Diagrams (for the first 20 elements) Navigating the Period Table o Metals, non-metals, metalloids (incl. Properties) o Periods and groups (incl. Properties) Chemical Families on the Periodic Table (Gp. 1, 2, 17, 18) Distinguish between atom, element & compound Relationship between number of valence electrons and number of bonds Gas Lab – How to identify a gas and observations