Molecular Geometry

 

Unit 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.  

 

Personal Achievement

Since the beginning of the unit, I understood easily how to draw the Lewis Structure and use it to determine the amount of bonds and the amount of electrons present in a molecule.

Enduring Understanding

There are 3 main types of chemical bonds: Covalent bond, ionic bond, and metallic bond.

• Covalent bond: Two atoms share share an electron pair.

• Ionic bond: One atom gives an electron to another atom.

• Metallic bond: Bond between metal atoms.

Lewis Structure:

The Lewis Structure is a diagram to show bonds between atoms, and also show the lone pairs of electrons in the molecule. With the Lewis Structure, we can determine whether a molecule is symmetrical or asymmetrical, which will then allow us to know whether the molecule is polar or nonpolar.

 

Reflection on Progress Towards the Standards

 

Area(s) of Strength

Since the beginning of the unit, I understood easily how to draw the Lewis Structure and use it to determine the amount of bonds and the amount of electrons present in a molecule.

 

Area(s) for Improvement

Despite understanding the Lewis Structure very well, sometimes I struggled figuring out which bonds went where in the Lewis Structure when I had to draw it out.

 

Evidence of Work: