1. Chemistry Review 2018
Thile

2. Use to Review and Make a Cheat Sheet
Definitions – chemistry, matter, atom, element, compound, mixtures (homogeneous and heterogeneous), solid, liquid, gas

3. Homogeneous versus Heterogeneous

4. Physical versus Chemical changes

6. Dimensional analysis
Conversions……
Metric or not
Double conversions…….

7. Accuracy versus Precision

8. 2.3g, 2.5g, 2.8g data……….true value = 2.4g

9. Percentage Error

10. Density
D = m/v

11. Scientific notation 250000000 = 2.4 x 10-4
Calculate (2.4 x 103) (5.2 x 10-2) =
Calculate x =
2.8 x 10 -8

12. LAWS!!!
Dalton’s law (what parts do we agree with and what parts do we not agree with?)
Law of definite proportions
Law of multiple proportions
Law of conservation of matter
If 10g of A reacts with 2g of B……..how much B will react with 50g of A?

13. Atomic Models – Who? What? Experiments?
Dalton
Thomson
Millikan
Chadwick
Rutherford
Bohr
Schrodinger

14. Average atomic mass

15. Big Bang and Stellar evolution
Expanding universe
How old is the universe?
Elements formed in the Big Bang?
Stellar Evolution
HR diagram
Color =
Sun?
Life cycle =
Elements formed?

18. Atoms versus Ions Atoms are electrically neutral – why?
Ions are atoms that have either lost or gained valence electrons to be like the nearest nobel gas.
Cations? Charges? Metal or nonmetal?
Anions? Charges? Metal or nonmetal?
What are the valence electrons?

19. Periodic Table First discovered by? Organized by?
Current Periodic Table organized by who? And by what characteristic?
Periodic Law?
What is a column called? What do elements in a column have in common?
What is a row called? What do elements in a row have in common?

20. Wavelength versus Frequency
What is a wavelength?
What is frequency?
How are they related?

21. Bright Line Spectrum
A Bright Line spectrum is formed when electrons fall from an excited state to the ground state for a particular element. It’s like an elements fingerprint.

22. E = hv
C = λv

24. Electron Cloud Model/ Quantum Mechanical Model of the Atom
What is the difference between n=1 and n=7?
Electrons fill each energy level starting with the lowest energy up to the highest energy…. (Aufbau’s principle)

25. Analogy Posters??? Orbitals definition, shapes s,p,d,f sublevels
Number of electrons in each energy level = 2n2
Number of orbitals per energy level = n2
Electron configurations and Nobel gas notation

26. Periodic Trends Definitions and Patterns Atomic Radii
Electronegativity
Ionization Energy

27. Bonding
Ionic – metal with nonmetal, naming (criss cross charges) polyatomics (use chart) and transition metals (roman numerals)
Covalent – nonmetal with nonmetal, called molecular compounds, use prefixes when naming and writing formulas

28. Ionic vs. Molecular Properties

29. Metallic bonds and properties

30. Lewis Dot Structures

31. VSEPR Theory

33. Nuclear Chemistry Isotope definition
Isotope notation – Nuclear notation 146C, Hyphen Notation C-14
Band of Stability (1:1 tending towards 1.5:1)
Ratio of n:p
Types of Nuclear Radiation = alpha, beta, gamma (size and penetration)
Equations
Fission and Fusion (define, which makes more energy)
Half Life (define, know how to do problems)