100 10448 120 Chemistry I (HON) 519 130 Unit 2 Atoms, Molecules and ions 140 150 11-12 160 170 1 180 210 08.1 Social Studies - History 211 1.9.4 212 4.5.1 213 214 215 216 220 221 222 223 224 225 226 230 231 232 233 234 235 236 240 241 242 243 244 245 246 250 251 252 253 254 255 256 300 Why is the periodic chart in its present format and how can information about the elements be extracted from it? 300 How did our model of the atom develop historically? 300 What is the process for determining the number of subatomic particles in any atom or ion? 300 Are all atoms of the same element identical? 300 Are all atoms stable? 300 How do molecular compounds differ from ionic compounds? 300 How can particles of matter be represented and their mass be determined? 400 Development of atomic theory 400 Calculating number of subatomic particles 400 Stability of atoms and radioactivity 400 Development of the periodic table 400 Meaning of various grouping on the periodic table 400 Properties of ionic and molecular compounds 400 Formation of ions 400 Separating and identifying ions by chromatography 400 Writing names and formulas for ions, ionic and molecular compounds, and acids and bases 400 Fractional crystallization lab 400 500 Students will develop the ability to: 500 Explain and diagram the various models of the atom developed over time 500 Use scientific discoveries and evidence gathered at that point in history to justify a particular scientist's model 500 Calculate the number of subatomic particles in any given isotope 500 Name the various sections on a periodic chart 500 Identify whether an element is a metal, nonmetal or metalloid 500 Determine the charge that atoms will acquire when they become ions 500 Write formulas for ions, ionic and molecular compounds and acids and bases 500 Name ions, ionic and molecular compounds and acids and bases 500 Use chromatography to separate and identify cations 500 Determine Rf values from chromatograms 500 Calculate the amount of solute that will dissolve in various amounts of water at various temperatures 500 Separate a mixture of silicon carbide, hydrated copper sulfate and potassium nitrate using fractional crystallization 600 Salt and wax lab activity--To determine that solids behave differently depending on the bonds holding the representative particles together 600 Practice writing formulas for and naming ions, ionic and molecular compounds 600 Practice writing formulas for and naming acids 600 Chromatography advanced study assignment for lab 600 Identification of unknown ions in a mixture using chromatography and determining Rf values UCONN lab #2 600 Representative particle learning guide--to develop the ability to determine representative particle mass and percent composition of compounds 600 Practice predicting charges on ions 600 Practice calculating the amount of solute that will dissolve in various amounts of solvent at given temperatures using data obtained from solubility graphs 600 Fractional crystallization advanced study assignment. 600 Separate a mixture of silicon carbide, hydrated copper sulfate and potassium nitrate by fractional crystallization. Purify the potassium nitrate through a second crytallization 600 Calculate the amount of water to be added in the crystallization using data from the solubility graphs 600 Learn how to use a spectrophotometer to determine the percent copper sulfate remaining after each of the two crystallizations of purified potassium nitrate crystals 700 Quiz--determine the representative particle mass of a given compound, name the representative particle and determine the percent composition of the compound 700 Graded advanced study assignments to determine if students understand the calculations required in the labs 700 Homework problems 700 Take-home test: Fill in the blank, multiple choice including problems, problem and essay section, and writing and naming ions, molecular and ionic compounds, and acids and bases 700