1. Molecules and Compounds Notes

2. There are only 92 kinds of atoms naturally found
There are only 92 kinds of atoms naturally found. There are a lot more kinds of matter than this, so how does this happen? Elements combine together to make compounds. Most substances are compounds, not elements.

3. Elements vs. Compounds
The difference is the number of elements that make up the substance.

4. Elements
Elements are substances that are made of only one kind of atom.
An example of an element is Na (sodium). Na is a metal that reacts violently with water.
Another example is Au (gold). Au is a metal that is not very reactive, but very soft.

5. Compounds Compounds are substances that are made of multiple elements.
An example of a compound is sugar- C6H12O6
It is made of three different elements, Carbon, Hydrogen, and Oxygen

6. Atoms vs. Molecules
The difference is the number of atoms in the smallest possible piece of the substance.

7. Atoms
Atom: the smallest possible piece of an element. Only one unbound atom.

8. Atoms

9. Molecules Molecules: Two or more atoms bound together.
An example is O2. O2 has 2 O atoms bound together.
Another example is CO. CO has one O atom and one C atom bound together

10. molecules

11. Which molecules are elements, not compounds?

12. Compounds

13. Sodium

14. ATP

15. Caffeine

16. Ibuprofen

17. `

18. Where are the atoms and molecules? Which are elements and compounds?

19. Get out your Lab notebook
Then quietly work on your bell work and journal while I check your lab notebook off.
If you finish early, get out your Making Molecules assignment and work quietly.