1. Matter and Atoms PS2b

2. Note Organizer Types of Matter 3 fold paper Headers of Element…. Compound …. Mixture

3. Matter Has mass and volume (takes up space) Simplest whole piece of matter is the Element - atom

5. Atom – 3 parts Electron Neutron Proton

7. Has positive charge Is in the nucleus Has mass

8. Neutron No charge Is in the nucleus Has mass

9. Electron Negative charge Has almost no mass

10. The Atom

12. Elements Pure Only one type of atom About a hundred (92) Periodic table

15. Element ID Symbol Atomic Number – the number of protons in the nucleus Mass number – its “weight”. Mass of neutrons and protons

16. Compounds Atoms will come together and bond at the molecular level – form molecules Share electrons

17. Compound Atoms linked at the molecular level Different properties than parent elements Na + Cl = NaCl Are in precise proportion

19. Salt

20. Molecule The simplest part of a compound is a molecule. If you break up a molecule it will go back into its parent elements

21. Water Molecule

23. Mixtures Combinations of elements or compounds that do not bond Can be in any proportion Alloys – metal mixtures (bronze) Examples -Salt water, cool aid