Topic 3: Building Molecules and Compounds


Atoms are the smallest units of matter that still retain the fundamental chemical properties of an element

A compound is a distinct group of atoms held together by chemical bonds.

The two major types of chemical bonds: covalent bonds and ionic bonds. In covalent bonds, two atoms share electrons, while in ionic bonds, electrons are fully transferred between two atoms so that ions are formed.

A covalent bond is formed when two atoms share electrons. In a covalent bond, the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared, negatively charged electrons between them.

What was the point of this activity?

The purpose of this activity was to understand the properties of elements, how they look, what components they are made up of and how they bond.

Explain how you would introduce this to your class?

I would introduce this to my class by creating a memory game to help them remember the elements atomic number and mass.

Where do you see a student having difficulty with this?

Difficulty in this activity could stem from students not remembering what the atomic mass and number represent and differentiating between the two numbers. They may also have trouble thinking about why certain elements can bond and which ones can double bond.


What changes or extensions could you do to this activity?

I could extend this activity by playing interactive games with them or watching videos so they can understand the basic concepts more before jumping into this activity.

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