Students drew Bohr models of atoms and related their electron configuration to their location on the Periodic Table of the Elements.
The basis for Oxidation Numbers and the classifications as metal, nonmetal, and metalloid were reviewed.
We introduced isotopes, atoms with the same number of protons and different numbers of electrons. This is a critical concept for the study of radiation. Students were asked to draw the isotopes Carbon-14 and Carbon-12 on a printed sheet for homework.
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