2. Matter Atoms & Elements

3. Matter Anything that takes up space Has mass and volume Can be seen, tasted, smelled or touched Examples of Matter Table Pencil Water Non-examples of Matter Sound Heat Light

4. Properties of Matter DensityMassWeight Boiling point VolumeSolubility Melting point

5. Properties of Matter Density Amount of matter in a given space or volume. Formula: D= M/V Units: g/cm 3 Volume Space an object occupies Meniscus Measures the volume of the liquid Units: Liters (L) & milliliters (mL)

6. Properties of Matter Weight Measure of gravitational force exerted on an object Varies depending on position on Earth Units: newtons Mass Measures the amount of matter in an object Always the same no matter where the position Units: kilograms (kg), grams (g), milligrams (mg)

7. Properties of Matter Boiling Point Temperature at which liquid boils and turns to vapor Melting Point Temperature at which a solid melts and turns to liquid

8. Properties of Matter Solubility How much of a material dissolves in a substance

9. Atoms Building blocks of Matter Matter is made of atoms Consists of Protons (+) Electrons (-) Neutrons (N)

10. Atomic Structure Inside Nucleus (Center of the atom) Protons Neutrons Outside Electrons

11. Electrons TINY!!! Very light particles Negative charge (-) Circle the nucleus Orbitals: 2,8,18,32,50,72

12. Protons Larger and heavier than electrons Positive Charge (+) Located in the nucleus (center of the atom)

13. Neutrons Large and Heavy like protons No electrical charge Located in the nucleus as well

14. Describing Atoms Atomic Number # of protons In general, # of protons= # of electrons Atomic Mass Number # of protons AND # of neutrons

15. Elements Consists of only ONE kind of atom Cannot be broken down into a simpler type of matter

17. Elements Aluminum

18. Elements Helium

19. Elements Silver

20. Elements Gold

21. Elements Neon

22. Elements Carbon