Station 1: Types of Bonds

Station 1: Types of Bonds 1.What are the three different types of bonds? Covalent, Ionic and Metallic 2.Write a complete sentence to describe how electrons behave between the three different types of bonds? - Electrons are shared between atoms in a covalent bond. - Electrons are transferred in an ionic bond. - Electrons form a “sea of electrons” in a metallic bond. 3.What are valence electrons? Number of electrons on the outer energy level. (In the s and p) 4.List the number of valence electrons in groups 1,2,13- 18. 1-1, 2-2, 13-3, 14-4, 15-5, 16-6, 17-7, 18-8 (Except Hydrogen = 1) 5.How many valence electrons do the transition metals usually have? Two Station 2: Lewis Structure 1.Draw a lewis structure chart for the following molecules: + -1 CH4, SO3, H3O , NH2 , NOF (N= central atom) and

SeO2. (Include structure, domain name, molecular name and polar/NP) Station 3: Intermolecular Forces 1.List the three types of intermolecular forces in order from strongest to weakest. Hydrogen, Dipole and London Dispersion Forces 2.What are network covalent solids? Carbon only or Silicon and oxygen. Forms planar sheets that are attracted to each other by LDF’s. 3.What are the properties of network covalent solids? High melting and boiling point. 4.Label each lewis structure from station 2 with its correct intermolecular force.

+ H3O -

-1 NH2 - NOF (N= central atom) -

SeO2- Station 4: Ionic Naming 1.From naming packet: 32-40. See answer key Extra Help: 42,45,46,47,48,49,50,66

Station 5: Writing Ionic Formulas 1.32-35,38-39,41-42,44,46,47. See answer key Extra Help:49,52,54-58,61,62,69.70.

Station 6: Covalent Naming 1.31,41,43,44,50, 54. See answer key Extra Help:54,67,75. Station 7: Writing Covalent Formulas 1.40,45,48,50,59,71. See answer key

Station 8: Macromolecules 1. Explain how macromolecules, polymers and monomers are related. Monomers make up polymers which are a classified as macromolecules. 2. Why does ice float? (Your answer should have something to do with the lattice structure.) The lattice structure formed in ice causes it to need more space therefore increase the volume of the substance and decreasing the density. 3. Why are graphite and diamonds (network solids) so strong? There are LDF’s attractions between the planar sheets of network solids. Even though LDF’s are weak since there are so many attraction forces the over substance is very strong. 4. Describe cross-linked chains (polymers) including the characteristics of the bonds formed. Polymers that are linked together. High melting point, retain shape, hard and brittle. 5. How are proteins formed? Proteins are formed from 20 amino acids and can form polymers. 6. Describe keratin. Keratin is a protein that is a monomer that forms long chairs called a polymer. These polymers make up hair.