Molecular Structures & Geometry
Weaknesses: My weakness is not proof-reading and checking my answers, or reading the questions thoroughly, which costed me a few points when it shouldn't. Fortunately, this does not happen often.
Overview: For students to learn the properties and rules of or molecular structures. They will use their knowledge in chemical bonding to draw Lewis Structures of the molecular compounds. The students will then be able to determine the molecular geometry of the compound from the Lewis Structure.
Enduring Understanding: There are three types of chemical bonding: Ionic (bond between metals and nonmetals), Covalent (bond between nonmetals), and Metallic (bond between metals and sea of electrons). Ionic bonding usually form compounds that have high boiling points, and form crystal lattices with very strong bonds. Covalent compounds generally have weaker bonds than ionic bonds, and are good heat and electricity insulators. Metals, on the other hand, are great conductors of electricity and heat, as their electrons are able to move around freely (unlike ionic compounds, whose electrons are fixed, therefore the compounds can't conduct electricity unless dissolved or in molten form).
Personal Achievements/Strengths: Throughout this unit, I've found it very easy to understand and demonstrate what I've learned (chemical bonds, lewis/resonance structure, molecular geometry). This is obvious as I've received a pretty high score in the chemical bonding test.
Other than learning about the different types of chemical bonding, I also learned about the structure of molecular compounds and its geometry. The most common way to understand a compound's structure is by drawing a Lewis Dot Diagram, which only entails the valence electrons of each elements in a compound.
 |  |
|---|---|
 |