MID-TERM EXAM Topics Today You’ll Need: Chromebook Notebook Calculator Reference Tables White Boards

TODAY’S OBJECTIVE Demonstrate your knowledge of the atom, electron notations, chemical bonding, chemical nomenclature and mole math by participating in a variety of review activities.

Move To Learning Team Supplies: Reference Tables Chromebook Calculator

Mercury (III) Phosphate WARM-UP: Complete the chart How many grams are in 6.78 x10 20 formula units of barium acetate? How many moles are in 4.56 g oxygen? (BE CAREFUL!! – you learned something NEW about oxygen!!) How many atoms are in 5.67 grams of zinc? Compound Name Compound Formula Barium Nitride P3I2 Mercury (III) Phosphate W(SO4)3

Share: Discuss answers to the warm-up

WHICH OF THE FOLLOWING ARE ISOTOPES? Ba-137 La-137 Na-23 Na-24 I-127 I-127 Rn-223 Ra-223

Discuss: WHAT MAKES IT AN ISOTOPE? (1) Determine how many protons, neutrons, and electrons are in the two atoms you chose (2) What makes them ISOTOPES?

Mid Term Exam Learning Team Relay Races Your Group will need 1 whiteboard / 1 marker / rag

What is the alkaline earth metal in period 3? RACE #1 What is the alkaline earth metal in period 3? Write the formula of the compound that forms when #1 reacts with the halogen in period 4? How many moles is equal to 18.98 g of the compound in #2? How many molecules are found in #3?

Race #2 What is the formula for phosphorus triiodide? Draw the Lewis structure for #1 Will # 2 dissolve in water? Will #2 conduct electricity? In what state of matter is #2 found at standard temperature and pressure? How many grams are in 16.95 moles of phosphorus triiodide?

Write the electron configuration for the CATION in the above problem. Race #3 Write the name for Cu2S Write the electron configuration for the CATION in the above problem. What is the molar mass of the compound in #1? How many molecules of the compound in #1 are found in 3.25 grams?

Race #4 What compound is formed from the reaction of: 1 atom of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 AND 2 atoms of [Kr] 5s2 4d10 5p5 (2) Name the compound in #1 (3) Draw the Lewis structure for the compound in #1 (4) What is the predicted geometric shape for the compound in #3? Is it polar?

Race #5 Identify the number of protons, neutrons, and electrons in a neutral Th-232 atom. Write the equation for the alpha decay of the atom in #1. If the product from #2 undergoes an alpha decay followed by a beta decay, what is the new stable isotope? To what family does the atom in #3 belong? Write the ion form of this atom.

Race #6 Write the formula for the alpha decay of Pu-244. The half life of the product from #1 above is 51 years. How much of a 12.0 gram sample will remain after 204 years? Predict the product if the answer to #1 above undergoes successive… alpha, beta, beta, then alpha decays to produce a stable isotope. What is the half life of the isotope in #3 above if a 40 gram sample decays to 1.25 grams in 125 years.

Independent Study / Learning Refresh

Practicing Skills - Learning Refresh Atom Math Nuclear Decay Periodic Behavior Periodic Trends (Ordering Elements) Lewis Structures Mole Math

Online Review Activities: Multiple Choice Question Sets: Unit 2: Atomic Structure – http://www.sciencegeek.net/Chemistry/taters/Unit1review.htm Unit 3: Periodic Behavior and Ionic Bonding – http://www.sciencegeek.net/Chemistry/taters/Unit2review.htm Unit 4: Covalent Bonding and Molecular Structure – http://www.sciencegeek.net/Chemistry/taters/Unit3review.htm NOTE: You may encounter some questions related to topics we have not covered, if so…. just skip them !!

MID-TERM EXAM REMINDERS Study Guide w/ Answer Key posted on weebly (not graded) Practice Midterm MC Tutoring available before school Bring The Following: #2 Pencil Calculator Something to read or study STUDY! STUDY! STUDY!