1. Atoms and Molecules
Crystals

2. Atoms & Molecules:
Atom: The smallest particle of an element. Or in other words 1 element
Ex: Carbon C
Just how small is an atom? Watch this video of a book and think about how small the top of the rooster’s head is at the very end.

3. Atoms & Molecules:
Molecule: is a particle made of 2 or more atoms bonded together.
Some molecules are made of atoms that are alike like Oxygen (0₂) gas you breath.
Most are made of more than 1 type of atom.
Water molecules have 2 hydrogens (H) atoms combined with 1 oxygen (O) atom to make H₂O.
All compounds are molecules.

4. Chemical Reaction
When a chemical reaction takes place, bonds are separated!
Also new solution are formed!
Something usually causes this like energy being added!

5. Simple & Complex Molecules:
Simple Molecules:
Complex Molecule: composed of many interconnected parts or subunits, can contain hundreds or thousands of bonds. Also known as polymers.
Ex: Sodium Chloride, diamonds.
Simple Molecule: contains 1 or few bonds, they are small. Also known as monomers.
Ex: Ammonia, and Methanol

6. Complex Structures continued:
Solids may be formed from molecules, or they may be extended structures with repeating subunits.
Ex: Crystals:
Crystals: An orderly, 3-D pattern of ions or atoms in a solid.

7. Simple Molecules:
Ammonia: NH₃
Methanol: CH₄O

8. Complex Molecules
Diamond
Sodium Chloride

9. Atoms and Molecules Videos
6min
9min