Presentation on theme: "A: 18 October 2011 Take Out Homework: Separating a Mixture Lab (procedure and data) Objective: You will be able to: … name the 3 subatomic particles and."— Presentation transcript:
A: 18 October 2011 Take Out Homework: Separating a Mixture Lab (procedure and data) Objective: You will be able to: … name the 3 subatomic particles and identify their charge, mass and location …relate atomic number to the number of each subatomic particle. Do now: Make a KWL chart. Fill in Know and Want To Know for The Atom.
Agenda I. Do now/Collect Separating a Mixture Lab II. Rutherfords Experiment Demo III. Subatomic particle notes and using the periodic table IV. Practice problems V. Exit Ticket Homework: Week 7 HW page 1-3: Fri. Quiz Fri. Obj. 1, 2 and 3 Watch isotopes (link on blog) video and take notes: by Fri.
Atom: Smallest particle of matter with the properties of that element Structure of an Atom
Subatomic Particles ChargeMassLocation Protonspositive (+)1nucleus Neutronsneutral (0)1nucleus Electronsnegative (-)1/2000around the nucleus Sub: beneath, under, within Atomic: the atom
The atom Nucleus - most of the mass of the atom is here Protons -In nucleus -Positive charge Neutrons -In nucleus -Neutral charge Electrons -orbit nucleus -negative charge
What information does the Periodic Table give us? Introduction to the Periodic Table
SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table and write names and symbols for ions.
Periods (across rows) SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table and write names and symbols for ions.
6 C Carbon Element Symbol Atomic Number (= number of protons) Average atomic mass Element Name
Protons: defining an atom Atomic number: Atoms of different elements have different numbers of protons.
Protons and Electrons Atoms are neutral Same number of protons and electrons Ex: Carbon has 6 protons and 6 electrons 6+ and 6- What is the net charge?
Subatomic particles in atoms ProtonsNeutronsMass number ElectronsElement
ProtonsNeutronsMass number ElectronsElement 2242Helium
A: 20 October 2011 Objective: You will be able to: relate atomic number to the number of each subatomic particle. model isotopes as nuclear and hyphen notation and calculate average atomic mass. Do now: Fill in the second line of your chart from Monday for the atom drawing on the board.
Agenda I. Do now II. Subatomic particle notes and using the periodic table III. Practice problems IV. Modeling atomic structure V. Exit Ticket Homework: Week 7 HW page 1-3: tomorrow. Quiz tomorrow. Obj. 1, 2 and 3 Video notes
Quiz Objectives 1. 7 contributors to atomic theory: know their name and their contribution (matching) 2. 3 subatomic particles, charge, mass, location 3. Modeling (sketching) an atom
ProtonsNeutronsMass number Electron s Element 2242Helium 3363Lithium 55105Boron 77147Nitrogen Neon Sodium 88168Oxygen
Which element…? Has 20 protons?
Which element…? Has 15 protons?
Which element…? Has 17 protons?
Which element…? Has 53 protons?
Which element…? Has 79 protons?
Which element…? Has 40 electrons?
Which element…? Has 77 electrons?
Which element…? Has 50 electrons?
Which element…? Has 118 electrons?
6 C Carbon Element Symbol Atomic Number (= number of protons) Average atomic mass Element Name
Trends in Atomic Numbers Atomic numbers increase to the right and down the Periodic Table of the Elements. Check it out.
Increasing atomic number
A: 21 October 2011 Objective: You will be able to: relate atomic number to the number of each subatomic particle. model isotopes as nuclear and hyphen notation and calculate average atomic mass. Do now: Add one row to the table from yesterday and fill it in for the drawing on the board.
Agenda I. Do now II. Modeling atomic structure III. Quiz on Objectives 1, 2 and 3 IV. Isotopes and average atomic mass Homework: Week 7 HW page 4-7: Tuesday Watch video on YouTube: Electron Configuration (Find it on the blog!): Weds.
Modeling Location of the Subatomic Particles Use your modeling kit to make an atom of each of the elements listed on the worksheet. Answer the questions as you go along. Dont worry about the neutrons – well talk about those next. Complete the back of the worksheet. Once you finish, do #9 on the homework
Quiz Objectives 1, 2 and 3 When you finish: turn it in do numbers 8 and 9 on your week 7 HW
Neutrons The number of protons in atoms of an element is always the same. carbon always has six protons! The number of neutrons in atoms of the same element is NOT always the same! carbon can have 6, 7 or 8 neutrons!
Isotopes: Using Hyphen Notation element-mass number carbon-12 6 protons (carbon always has six) How many neutrons? carbon-14
Nuclear Notation What is the nuclear symbol for carbon-14? What about boron with 5 neutrons? What about boron with 6 neutrons?
Practice Complete #1 on handout
20 October 2011 Take Out: Week 7 Homework Objective: You will be able to: show what you know about objectives 1-3 model isotopes as nuclear and hyphen notation calculate average atomic mass (this is not a silent Do Now) Do now: Quiz your partner on the 7 contributors to atomic theory and their discoveries!
Agenda I. Do now/review II. Go over homework p. 1-3 III. Obj. 1-3 quiz IV. Review hyphen notation and nuclear notation V. Calculating average atomic mass VI. Candium pre-lab! Homework: Week 7 Homework p. 4-7: Tues.
Quick Review Write the hyphen notation and the nuclear notation for: a. the isotope of copper with 34 neutrons b. the isotope of copper with 36 neutrons
Isotopes and Average Atomic Mass So. That number underneath the elements name. What. is. it.
Average Atomic Mass The weighted average of the mass numbers of all the isotopes of an element.
Try a weighted average: In your college chemistry class, labs are worth 30% of your grade and exams are worth 70%. You have an 88% average for labs and a 67% average for exams. Calculate your overall average grade.
A weighted average with isotopes In nature, the element lithium has isotopes in the following natural abundance: 7.5% lithium % lithium-7 Calculate the average atomic mass.
Copper has two naturally occurring isotopes. They are present in the following percents: 69.09% 30.91% Calculate the average atomic mass.
Calculate the average atomic mass of Ne
Practice Complete the rest of the handout from yesterday.
Homework Week 7 Homework pages 4-7 Tues. Watch Electron Configuration video on youtube: Weds
Expectations Stay in your seat Use a quiet tone of voice Read p. 1 Complete p. 2 When you finish, work on HW p. 4-7 or extra credit
Exit Ticket Isotopes: hyphen notation and nuclear notation Average atomic mass
A: 24 October 2011 Take Out Homework: Week 7 p. 4-7 Objective: You will be able to: determine the average atomic mass of the element Candium. Do now: Tungsten (W) is composed of four main isotopes with the following natural abundances. Calculate the average atomic mass. tungsten % tungsten % tungsten % tungsten %
Agenda I. Do now/check homework II. Candium Pre-Lab III. Candium Lab! IV. Calculations, Data Table Homework: If you dont finish your lab handout in class, it is due tomorrow. Electron Configuration video notes: tomorrow: link on the blog
Pre-Lab With your partner, spend 10 minutes reading the article and working on the pre- lab questions. Stay in your seat Use a quiet voice Work hard to get this done! During lab today, I will be observing your work habits and giving you a score from 1 to 4 based on your ability to stay on task, follow directions and work with your group
Candium Lab Each group will receive a sample of the newly discovered element Candium. Each piece of candy is one atom of Candium Candium is composed of 3 isotopes: Candy Corn, Lemon Drop and Mike and Ike Each isotope has a different mass Your job is to follow the directions to determine the average atomic mass of Candium This involves calculating a weighted average of the average mass of each isotope.
Data Collection Design a table in your notebook in which to collect data. Once you are done and have calculated the average atomic mass, check your work with me. Then, recopy your table neatly (you can make improvements) onto the worksheet. Answer the questions and turn it in!
Clean Up Place all the atoms back into the baggie. Return your Candium sample and the weighing boat to the front table. Return your balance to the cabinet with the cord wound around the plug.
Homework Candium Lab conclusion questions. Watch YouTube Video Electron Configuration by PHAChemistry and take notes by tomorrow! (Well go over the answers to the Week 7 HW tomorrow.)
A: 26 October 2011 Take Out Homework: Week 7 Homework p. 4-7 AND Candium Lab Objective: You will be able to: describe the location of electrons around the nucleus. Do now: Write the hyphen AND nuclear notation for an isotope with 16 electrons and a mass number of 33.
Agenda I. Do now/check homework, collect lab II. Expectations and Citizenship III. Homework answers IV. Track Unit 1 Quiz, organize, Track Unit 2 Quiz V. A surprise for you! VI. Exit ticket: isotopes and average atomic masses VII. Electron Configuration Homework: Week 8 Homework p. 1-3
Expectations and Citizenship Why? We lose time and focus, often during partner or group work This leads to lower objective mastery, which means we are learning less! You deserve a learning environment free of distractions so you can do your very best! You deserve weekly feedback (and rewards!) for how well you meet these expectations.
Spelling out the Expectations You already do most of these most of the time. Your goal is to do all of them all of the time!
Assessing Your Progress Each class period, you start with a 4 for citizenship. Each time you receive a warning, you will lose one point. If you reach a 1 (this is THREE warnings), you will receive a blue slip and a call home. Your citizenship will be averaged each week and becomes part of your classwork grade.
Rewards You will now keep your hall passes in your folder. If your citizenship average is greater than or equal to 3 for a week, you will receive an extra hall pass. When you want to use one, just fill it out and have me sign it at a time when we are NOT doing whole-class work (ex: During lecture is NOT a good time to use the bathroom. During partner work IS a good time).
Whole class rewards What if the whole class has an average of 3 or better for a week? 10 minutes of free time at the end of a class the next week? Candy? Other?
Track your last Unit 1 Quiz Add it to your Unit 1 bundle. Place it in your green folder. Label your folder tab with your name. Place it in the file basket. Dont forget to make up the Unit 1 Objectives that you havent yet earned a 3 or a 4 on!!
Track your Unit 2 Quiz Keep it in the Everything Else side of your folder. Keep the Unit 2 Objective Mastery Tracking Sheet on TOP of Everything Else! Get your stamps!
A gift for you Take out your Periodic Table!
C: 26 October 2011 Objective: You will be able to: describe the location of electrons around the nucleus. Do now: a. Draw a sketch of one atom of fluorine with the electrons on the correct energy levels. b. How many valence electrons does fluorine have?
Agenda I. Do now II. Homework Answers III. Isotopes and average atomic mass exit ticket IV. Electron arrangement! V. Orbital Notation and Electron Configuration Notation Homework: Week 8 Homework p. 1-3 Thurs. Quiz Thurs.
Exit Ticket Objectives 2.4 and 2.6 Isotope notation (hyphen and nuclear) Calculating average atomic mass
Electron Configuration Work along in your packet as we do this together. Then, work with your partner to complete the assignment.
Thursday and Friday I will be at a conference for science teachers learning cool new demos and experiments and ways to teach the things you need to learn! You will have a sub – treat this person with respect and complete ALL the assigned work. The work you complete in my absence will be graded!
Homework Week 8 Homework p. 1-3 tomorrow. Quiz tomorrow: Something from Unit 1 Contributors to atomic theory Atomic structure Sketching an atom Isotopes Average atomic mass
A: 1 November 2011 Take Out Homework: Week 8 HW Objective: You will be able to: model electron configuration and ionization Do now: On your progress report, identify missing work. If you have it, turn it in. If not, make plans to do work after school this week.
Agenda Do now Modeling electron configuration and ionization examples and practice Atoms vs. Ions Homework: Week 8 Homework: Fix: Weds. Finish Ionization and Electron Config. worksheet: Weds. Quiz on Unit 2 Objectives 7 through 13 on Thurs.
C: 2 November 2011 Take Out Homework: Week 8 and Ionization and Electron Configuration Objective: You will be able to: review atomic structure and electron configuration by creating an element facebook page! Do now: Write the symbol for the ion formed by calcium. Explain how you determined the charge for the ion.
Agenda I. Do now II. Track Exit Ticket and Quiz III. Week 8 HW answers IV. Trends on the periodic table V. Exit ticket, Objectives VI. Element Facebook project instructions VII. Work time! VIII. Track Objectives Exit Ticket
Homework 1. Homework: Element facebook page due Monday 2. Fix Atomic Structure and Ionization Worksheet 3. Quiz on Unit 2 Objectives 7-13: tomorrow
A: 2 November 2011 Take Out Homework: Week 8 and Ionization and Electron Configuration WS Objective: You will be able to: review atomic structure, electron configuration and ionization Do now: Write the symbol for the ion formed by calcium. Explain how you determined the charge for the ion.
Agenda I. Do now II. Track Exit Ticket and Quiz III. Week 8 HW answers IV. Trends on the periodic table V. Fix Atomic Structure and Ionization Worksheet VI. Exit ticket, Objectives VII. Introduce element facebook project
Homework 1. Homework: Element facebook page due Monday Youll have work time tomorrow 2. Quiz on Unit 2 Objectives 7-13: tomorrow
Tracking Track your Exit Ticket and Quiz Hand your quiz back in!! I havent put them in the gradebook yet! Keep out your tracking sheet so you can get your stamps for the quiz.
Week 8 Homework Answers and ion trends on the Periodic Table
Ions formed by group - Add to your PTE Cations Anions Lose e - Gain e -
Exit Ticket Objectives 10-13
Homework 1. Homework: Element facebook page due Monday Youll have work time tomorrow 2. Fix Atomic Structure and Ionization Worksheet: tomorrow 3. Quiz on Unit 2 Objectives 7-13: Friday
A: 3 November 2011 Objective: You will be able to: review atomic structure, electron configuration and ionization Do now: Write the electron configuration notation for magnesium. Then, write the electron configuration notation for the ion formed by magnesium.
Agenda I. Do now II. Exit ticket III. Introduce element facebook project – directions IV. Work time! Homework: Quiz: Weds, Objectives 7-13 Element Facebook page: Weds.
Element Facebook Project Use my example and the rubric to be sure you include all required parts. Use the template to collect information. Your final product must by typed or neatly hand written on a new piece of paper. All information from other sources must be in your own words! Due next Wednesday.
Choose an element from groups 1, 2, only! Dont choose the same one as a friend!
This period Stay in your seat You may: collect information on the history of your element and record it on the template Choose pictures from Google image and paste them into a Word document Write the diagrams, orbital notation, etc. for your element on the template Be sure to save your work!
Homework Quiz: Wednesday, Objectives 7-13 Element Facebook page: Weds.
Writing ion symbols and names Element symbol charge For example, sodium loses one e-, so it has a charge of +1 Na + (1 is invisible) For example, oxygen gains 2 e-, so it has a charge of 2- O 2-
Cations (positive ions) are given the name of the element Na + is the sodium ion Anions (negative ions) are given the name of the element with an -ide ending Cl - is the chloride ion
Anions N 3- nitride ion O 2- oxide ion F - fluoride ion S 2- sulfide ion Cl - chloride ion Br - bromide ion I - iodide ion
Homework Week 6 Homework #1-9 Finish packet from classwork today p. 3-4 Complete Lab Conclusion Questions in your notebook (Lab Quiz Mon.) Type your procedure, paragraph form, including everything you actually did
Complete (c) and (d) with your partner Finish the worksheet Begin your homework
A: Homework Week 6 Homework #6-9
Set up a table: Element# Valence E- Loses or Gains E- Cation or Anion? Charge of Ion Symbol of Ion Name of Ion 14 lines… … …
Number of Valence Electrons 1. Li 2. Be 3. B 4. F 5. O 6. N 7. Cl 8. P 9. K 10. Ca 11. Al 12. Se 13. Br 14. Kr
Lost or Gained Electrons? 1.Li 2.Be 3.B 4.F 5.O 6.N 7.Cl 8.P 9.K 10.Ca 11.Al 12.Se 13.Br 14.Kr
What ion is formed? 1.Li 2.Be 3.B 4.F 5.O 6.N 7.Cl 8.P 9.K 10.Ca 11.Al 12.Se 13.Br 14.Kr
Anion or Cation? Cation is positive because it has LOST electrons. It is a positive thing to have a cat, and it would be sad if you lost your cat. Anion is negative because it has GAINED electrons Mnemonic?
Symbols for Ions Element Symbol Charge Li + Cl - Al 3+ Number, then + or – No need to write a 1 1 is often invisible in chemistry
Write the Symbol 1.Li 2.Be 3.B 4.F 5.O 6.N 7.Cl 8.P 9.K 10.Ca 11.Al 12.Se 13.Br 14.Kr
Names for Ions Cations: Same name as the element Li + : lithium ion Sr 2+ : strontium ion
Naming Ions Anions: Ending changes to -ide N 3- : nitride ion O 2- : oxide ion F - : fluoride ion S 2- : sulfide ion Cl - : chloride ion Br - : bromide ion I - : iodide ion
Name the ions formed by these elements 1.Li 2.Be 3.B 4.F 5.O 6.N 7.Cl 8.P 9.K 10.Ca 11.Al 12.Se 13.Br 14.Kr
How easy is it to make an ion? Ionization Energy: The amount of energy required to remove an electron to form a positive (+1) ion. Increases going UP a group and across a period to the RIGHT.
Ionization Energy Increases
Trends in Ionization Energy Why? The smaller the atom, the closer the valence shell is to the nucleus. The closer the valence shell is held to the nucleus, the harder it is to remove an electron. Harder to remove = more ionization energy
Atomic Radius Increases
Significance of Chemical Formulas
Connection to Classification of Matter What do you know about chemical compounds?