Chem 1P - Unit 3

Instructional Segment 3 (IS-3)


Atoms, Elements, and Molecules

Students recognize patterns in the properties and behavior of elements, as illustrated on the periodic table. They use these patterns to develop a model of the interior structure of atoms and to predict how different atoms will interact based on their electron configurations. They use chemical equations to represent these interactions and begin to make simple stoichiometric calculations.

HOW MANY ELEMENTS ARE THERE IN THE PERIODIC TABLE TO YOUR LEFT?

Protons

Have POSITIVE charge

Electrons

Have NEGATIVE charge

Neutrons

Have ZERO charge

ATOMS ARE MADE UP OF WHAT???


3 WATER MOLECULES HANGING OUT TOGETHER

SUCROSE MOLECULES : SWEET!!!