1. Review of Inorganic Chemistry

2. Section 1: Composition of Matter

3. Atomic Structure p+ n0 e-
Nucleus
Electron Cloud

4. C Atomic Structure 6 Carbon 12.011 Atomic Number = protons/electrons
Atomic Mass = protons + neutrons

5. Atomic Structure Properties of Subatomic Particles Useful Equations:
protons = atomic #
electrons = atomic #
neutrons = atomic mass - atomic #

6. Atomic Structure
Nitrogen
Hydrogen
Oxygen
Helium

7. Elements 92 elements occur in nature
CHNOPS are the six biologically important atoms that make up 99% of living tissue

8. Isotopes
Isotopes are atoms of the same element that differ in the number of neutrons they contain.
Nonradioactive carbon-12
Nonradioactive carbon-13
Radioactive carbon-14
6 electrons
6 protons
6 neutrons
8 neutrons
7 neutrons

9. Isotopes

10. Ionic Bonding
An ionic bond is a bond formed by the electrical attraction between two oppositely charged ions.

11. Ionic Bonding Sodium atom (Na) Chlorine atom (Cl) Sodium ion (Na+)
Chloride ion (Cl-)
Transfer
of electron
Protons +11
Electrons -11
Charge
Protons +17
Electrons -17
Electrons -10
Charge
Electrons -18
Charge

12. Ionic Bonding

13. Covalent Bonding
A covalent bond is a bond that forms when two atoms share one or more pairs of electrons.

14. Covalent Bonding

15. Section 2: Mixtures

16. Mixtures Substances in a mixture retain their original properties.
There are two types of mixtures:

17. Solutions Solutions are a type of homogeneous mixture.
A solute is dissolved into solvent to make a solution.

18. Saturated Solutions

19. Suspension
Particles in suspensions settle out over time because they are large.

20. Colloids
Particles in a colloid are intermediate in size, but do not settle out over time.
Colloid
Solution

21. Acids & Bases H2O  H+ + OH- H2O + H+  H3O+
Acids contain more H3O+ than OH-
Bases contain more OH- than H3O+
Neutral Solutions: [H3O+] = [OH-]

22. pH

23. pH

24. pH Scale

25. Section 3: Energy

26. Chemical Reactions
Reactants  Products

27. Types of Chemical Reactions
Synthesis
Decomposition
Exchange

28. Energy & Chemical Reactions
Products
Activation energy
Reactants
Products
Activation
energy
Reactants
Endothermic Reaction
Exothermic Reaction

29. Energy & Chemical Reactions
Endothermic Reaction
Exothermic Reaction