1. Chemistry Final Review

2. Subatomic Particles ParticleLocationChargeMass Proton Neutron Electron

3. Atomic Mass, Atomic Number and Isotopes Atomic number tells you__________________ Atomic mass = An isotope differs in the number of _________

4. Flame test Energy levels: as you move from the 1 st energy level (shell) to the 2 nd energy level (shell) the amount of energy each electron has ________ When an electron gets excited it __________ energy and moves to a _________ electron shell.

5. Groups on the periodic table Elements in the same group (column) have the same number of ________________, and similar _____________.

6. Periodic trends Electronegativity, ionization energy and radius

7. Properties of metals, non-metals and noble gases texture Malleable, ductile, Conducts electricity High melting point Solid, brittleDoes not conduct electricity gas

8. Compound, element, mixture

9. Reaction types A + B  AB AB  A+B AB + CD  AD + BD A + BC  AC + B

10. BALANCING EQUATIONS In any reaction charge, energy, and mass are conserved 1.__NaCl + __BeF 2 --> __NaF + __BeCl 2 2. __FeCl 3 + __Be 3 (PO 4 ) 2 --> __BeCl 2 + __FePO 4 3. __AgNO 3 + __LiOH --> __AgOH + __LiNO 3 4. __CH 4 + __O 2 --> __CO 2 + __H 2 O 5. __Mg + __Mn 2 O 3 --> __MgO + __Mn

11. Empirical and molecular formulas Empirical formula C 3 H 7, molecular weight 86 g/mole, what is the molecular formula?

12. A compound contains 18.8% sodium, 29.0% chlorine, and 52.2% oxygen, by mass. If the molar mass of the compound is 122.44 g/mol, determine the empirical and molecular formulas.

13. Ionic and Covalent Compounds Bond typeElectronsElectrolyteOther characteristics IonicMetal + nonmetal (or polyatomic ion) TransferredIn solution or melted CovalentNon-metalsSharedNo metallicMetals“sea of electrons” solid

14. Acid and base pH scale Acid + base  water + salt [H + ] = -log pH [OH - ] = -log pOH [H + ] x [OH - ] = 1 x 10 -14 M 2 pH = 10 -[H+] pOH = 10 -[OH-]

15. Moles!!! Change 34 g of lithium to moles. What is the weight of 1.75 mole of Ca? Change 8.5 g of SiH 4 to moles. Change 5.20 moles of C 3 H 6 O 2 to grams

16. Alpha, beta, gamma particlesymbolpenetration Alpha Beta Gamma

17. Half life Assume you have a 200 gram sample of Radon. Its half life is 4 days. How much will remain unchanged after 24 days. A sample of Ra-226 has a half life of 7 hours. If the original sample was 200 grams, how much of the sample would be left after 5 half lives? How much time will have gone by after 5 half lives?