Unit: The Periodic Table
I can...
- define and explain the difference between elements, compound, and mixtures.
- identify and describe the properties of metals, metalloids, and non-metals.
- identify and describe trends on the periodic table based on its organization.
- define and give examples of types of mixtures- solutions, suspensions and colloids
Links
Graphics
Chemical bonds occur when atoms of different elements join to form new compounds. Elements do this by exchanging or sharing their valence electrons in their outermost electron shells. Atoms “like” to have full electrons shells. For many elements, this means they want to have either 2 or 8 valence electrons in their outer shell.
Examples:
One nitrogen atom and three hydrogen atoms will share their valence electrons to form NH3, commonly known as ammonia.
A lithium atom will give its valence electron to a fluorine atom. This forms lithium fluoride.
In both examples, the atoms have full shells after bonding, and are therefore "happy."
Examples:
One nitrogen atom and three hydrogen atoms will share their valence electrons to form NH3, commonly known as ammonia.
A lithium atom will give its valence electron to a fluorine atom. This forms lithium fluoride.
In both examples, the atoms have full shells after bonding, and are therefore "happy."
Videos
Periodic Table Ceiling Tile Slide Show
Students conducted research about an element of their choice. The students then developed a design to repesent their element based on their research. As a final step, they executed their design on a ceiling tile giving the rooms both an artisitc and scientific makeover.