Monday, January 26th, 2015 HW: Finish Semester 1 Review Packet Objective: WE will review information pertaining to Semester 1 to obtain a mastery of 80% of higher. Catalyst: What happens to electronegativity across a period? Please explain in terms of Columbic attraction. Classroom expectations: Wear Kenwood ID. Cell phones, music players, and headphones are put away. Food is disposed of or put away. Dressed appropriately. Notebook is out and you are ready for today’s class. ***Table of Contents 1/20 Week 19 Catalyst Chart 104 1/20 Ionic Compounds Station Work 105 1/21 Semester 1 Review Packet (do not staple yet) 106

Monday, January 26th, 2015 HW: Study for final exam Objective: WE will review information pertaining to Semester 1 to obtain a mastery of 80% of higher. Catalyst: What happens to electronegativity across a period? Please explain in terms of Columbic attraction. Classroom expectations: Wear Kenwood ID. Cell phones, music players, and headphones are put away. Food is disposed of or put away. Dressed appropriately. Notebook is out and you are ready for today’s class. ***Table of Contents 1/20 Week 19 Catalyst Chart 98 1/20 Ionic Compounds Practice Wkst 2 99 1/21 Semester 1 Review Packet (do not staple yet) 100

Agenda Catalyst/Homework Check Announcements Homework Questions? Overview of Semester Final Review Day 2 Overview Day 2 Review

Announcements Tutoring for final exam: TODAY until 4:45 (Units 3-5 ONLY) Review packet will be collected day of your exam!!! Bathroom pass collection DAY OF FINAL Notebook check will occur the DAY AFTER you take the final Exception: 1st period will have their notebook check on Wednesday

Semester Exams 0 days left!!!

Exam Schedule

Homework Questions?

Semester 1 Final Exam 60 multiple choice questions Covers entire semester Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 (Ionic Compounds ONLY) Worth 10% of final grade

Semester 1 Final Exam 60 multiple choice questions Covers entire semester Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 (Ionic Compounds ONLY) Worth 5% of final grade

What will UNIT 1 cover? Unit 1: Matter Significant Figures States of Matter and Phase Changes

What will UNIT 2 cover? Unit 2: Energy and Heat Specific Heat (calculations included) Endothermic vs Exothermic Systems Phase Diagram Interpretation

What will UNIT 3 cover? Unit 3: Atomic Structure Structure of the Atom Using periodic table to determine subatomic particles Isotopes Bohr Model Valence Electrons Mole Calculations

What will UNIT 4 cover? Unit 4: Periodic Table Groups/Families Electron Configuration Periodic Trends Atomic Size Electronegativity Ionization Energy Graph Interpretations

What will UNIT 5 cover? Unit 5 (Part 1): Bonding Ions Ionic Bonding Naming Lewis Dot Diagrams Formula Writing

Whiteboard Problems ONLY write on board when answering a question ONLY write the answer to the question Therefore….no doodling!!! No twitter names, etc. Whiteboard will be taken and you will receive NO participation points for today.

Unit 1 Round 385 to two significant figures. Answer: 390

Unit 1 Round 0.0130 to one significant figure. Answer: 0.01

Unit 1 How could you make the number 42 have four significant figures? Answer: 42.00

Unit 1 Calculate with the correct number of significant figures: 23.2 x 0.33 = ? Answer: 7.7

Unit 1 Calculate with the correct number of significant figures: 44.25 / 0.8 = ? Answer: 60

Unit 1 How many significant figures can we measure in the equipment below? Answer: 3

Unit 1 How much liquid is in the container in the diagram? Answer: 30.0 mL

Answer: solid, liquid, gas Unit 1 Rank the states of matter from least to most atomic movement. Answer: solid, liquid, gas

Unit 1 Which state of matter does not have a fixed volume and takes the shape of its container? Answer: Gas

Unit 1 Sublimation is a change from _________ to __________. Answer: Solid to Gas

Unit 1 Which phase change occurs when gas changes to liquid? Answer: Condensation

Unit 2 Asphalt has a specific heat of 0.92 J/g0C. Concrete has a specific heat of 0.88 J/g0C. Which would heat up the fastest on a 250C day and why? Answer: Concrete, because it requires less energy to raise the temperature by 10C.

Unit 2 Calculate the mass of a sample of water that requires 1,200 J of heat energy to raise the temperature from 250C to 420C. Answer: 17 g

Unit 2 Calculate the change in temperature if 4.2 grams of water loses 725 J of heat energy. Answer: - 410 C

Unit 2 If the system is an ice cube, and the surroundings is your hand, would an endothermic or exothermic, and why? Answer: Endothermic, because the ice cube is absorbing heat from the surroundings.

Unit 3 What are the charges on each subatomic particle (proton, neutron, electron)? Answer: Proton + Neutron = neutral Electron -

Unit 3 Answer: Protons and neutrons in the nucleus contribute to the mass. Electrons are so small that their mass is neglible. Do all of the subatomic particles contribute to an atom’s atomic mass? Why or why not?

Answer: Atomic Number: Protons and Electrons, Mass: protons & neutrons Unit 3 In a neutral atom, the atomic number tells us the number of ___________ the atomic mass tells us the number of ______________.

Unit 3 Which element has the most neutrons: Cobalt or Nickel? Answer:

Unit 3 If two atoms have the same number of protons and same number of electrons, but different numbers of neutrons they are called _________ of one another. Answer: Isotopes

Unit 3 If two atoms have the same number of protons and same number of neutrons, but different numbers of electrons they are called _________ of one another. Answer: Ions

A & B are Isotopes; A & C are Ions Answer: A & B are Isotopes; A & C are Ions Unit 3 Atom # Proton # Electrons # Neutrons A 11 12 B 13 C 10 In the table above, which two atoms are isotopes? Which two are ions?

Unit 3 What is one of the weaknesses of the Bohr model? Answer: Electrons are not found in fixed locations, in rings around the nucleus, and instead are constantly moving in orbitals. What is one of the weaknesses of the Bohr model?

Unit 4 In the Bohr model, how many electrons can fit in each shell? Answer: 1st: 2 2nd: 8 3rd: 18 4th: 32

Unit 3 How many valence electrons are in Astatine? Answer: 7

Unit 3 How many grams are in 4.1 moles of Xenon? Answer: 54 grams

Unit 3 How many many moles are in 1.22 x 1025 atoms of Strontium? Answer: 20.3 moles

Unit 3 What is the mass of 5.6 x 1025 molecules of ammonia? Answer: 1,600 g

Unit 3 How many atoms are in 360 grams of Bromine? Answer: 2.7 x 1024 atoms

Unit 3 How many moles are in 421 grams of sodium chloride? Answer:

Unit 3 What is the mass of 1.8 moles of lithium bromide? Answer: 160 grams

Unit 4 Give three examples of Alkaline Earth metals. Answer: Be, Mg, Ca, Sr, Ba, Ra

Unit 4 Give three examples of Halogens. Answer: F, Cl, Br, I, At

Unit 4 What block are the Alkali Metals found in? Answer: s-block

Unit 4 What block are the Transition Metals found in? Answer: d-block

Unit 4 What block are the Noble Gases found in? Answer: p-block

Unit 4 What is the electron configuration for Silicon? Answer: 1s22s22s63s23p2

Unit 4 What is the electron configuration for Nickel? Answer: 1s22s22p63s23p64s23d8

Unit 4 What is the electron configuration for Zirconium? Answer: 1s22s22p63s23p64s23d104p65s24d2

Unit 4 Draw the orbital filling diagram for Sodium. Answer:

Unit 4 Draw the orbital filling diagram for Argon. Answer:

Oxygen, Selenium, Potassium Unit 4 Rank the following elements from SMALLEST to LARGEST atomic radius: Selenium, Oxygen, Potassium. Answer: Oxygen, Selenium, Potassium

Potassium, Selenium, Oxygen Unit 4 Rank the following elements from SMALLEST to LARGEST ionization energy: Selenium, Oxygen, Potassium. Answer: Potassium, Selenium, Oxygen

Potassium, Selenium, Oxygen Unit 4 Rank the following elements from SMALLEST to LARGEST electronegativity: Selenium, Oxygen, Potassium. Answer: Potassium, Selenium, Oxygen

Atomic radius decreases because Coulombic attraction increases. Unit 4 What is the trend in atomic radius across a period, and why? Answer: Atomic radius decreases because Coulombic attraction increases.