1. Atoms, Ions, and Molecules

2. Bell Ringer 09.07.11 Which of the following represents an organic molecule? ▫A. CuSO 4 H 2 O ▫B. C 12 H 22 O 11 ▫C. AgNO 3 ▫D. H 2 O

3. Atom Smallest basic unit of ______. What else have we identified as a basic unit of structure and function?

4. Element Type of atom Can’t be broken down into a simpler substance Identified by number of ______ How can we identify the number Of protons, neutrons and electrons From this picture?

6. Elements Carbon, Oxygen, Nitrogen and Hydrogen =96% of human body’s mass

7. Bohr Model Draw a hydrogen, oxygen, and carbon atom. Check your book to see how many protons, neutrons, and electrons to include.

8. Ions and Isotopes ________-same number of protons (same element) different number of neutrons (different mass) ▫Ex: Carbon-14 ________-atom or group of atoms with a positive or negative charge  Ex: Na +  Is this a cation or anion? What’s the difference?

9. Compounds Different elements bonded together in a certain ratio Can be _______ or ________ Examples?

10. Compounds Compounds often have different ______ than the elements that compose them. Example: water

11. Chemical Bonds Chemical bonds form between ______ Different types: Ionic and Covalent

12. Assignment In your group, create a diagram showing the differences between Ionic and Covalent bonds. Use your textbook and the article provided for information Include: ▫Characteristics ▫Pictures/Drawings ▫Examples