Do Now Label the element square. What is an oxidation number? How do you think we can use these numbers to predict the type of bond formed? (ionic, covalent) Atomic # 10 Ne Neon 20.180 Chemical Symbol Element Name Avg. Atomic mass # The charge of an atom when it gains, loses, or shares an e- in a chemical bond. Elements close to noble gasses tend to give or take e- and form ionic bonds.

Achieve 3000 – A New House on the Block (4-15) Announcements Homework Achieve 3000 – A New House on the Block (4-15) Announcements Friday – Take your child to work day Monday – FSA/FCAT Testing Testing Week Packets and labs – make up work http://www.superlaugh.com/behappy

Title: Naming Compounds L.O. SWBAT use the periodic table to predict compound names.

Glue in Oxidation Number Worksheet

Ionic bonds On the periodic table, strong electron donors are on the left side (alkali metals). Strong electron acceptors are on the right side (halogens). The further apart two elements are on the periodic table, the more likely they are to form an ionic compound.

covalent bonds Form when electrons have equal tendency to accept e-. Elements are both nonmetals and tend to be close together on the periodic table.

Glue in Lewis Dot Worksheet Oxidation numbers for all the atoms in a compound must add up to zero.

oxidation and reduction Khan Academy Video oxidation and reduction 11:03 https://www.khanacademy.org/science/chemistry/oxidation-reduction/redox-oxidation-reduction/v/introduction-to-oxidation-and-reduction

Oxidation # of Common polyatomic ions Page 366 Oxidation Number Name of Ion Formula 1+ ammonium NH4+ 2- carbonate CO32- 1- hydroxide OH- 3- phosphate PO43- sulfate SO42-

Prefixes you should know! Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca

Summary – Binary vs Poly Naming Compound Rules Page 367-368 Binary Compounds Write the name of the 1st element Mg = Magnesium Write the root name of the 2nd element Br = Bromine = brom- Add the suffix –ide to the root name brom + ide = bromide Write the name MgBr2 lower case Magnesium bromide

Summary – Binary vs Poly Naming Compound Rules Page 367-368 prefixes Write the name of the 1st element Prefix: Specify the # N2 = di + nitrogen Write the root name of the 2nd element Suffix: - ide O4 = tetra + ox + ide Write the name N2O4 Dinitrogen tetraoxide

Summary – Binary vs Poly Naming Compound Rules Page 367-368 Compounds with Polyatomic ions Write the name of the 1st element NH4 = ammonium Write the root name of the 2nd element Cl = Chlorine = chlor- Add the suffix –ide to the root name chlor + ide = chloride Write the name NH4Cl Ammonium chloride

Independent Work Work on Packet 1 – Pre assessment and reading guide for chapter 16 section 1 Finished? Turn it in