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 LabII. Rutherford’s Experiment DemoIII. Subatomic particle notes and using the

periodic tableIV. Practice problemsV. Exit TicketHomework: Week 7 HW page 1-3: Fri.Quiz Fri. Obj. 1, 2 and 3Watch 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

Charge Mass LocationProtons positive

(+)1 nucleus

Neutrons neutral (0)

1 nucleus

Electrons negative (-)

1/2000 around 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)

Gro

up

s (d

ow

n c

olu

mn

s)

SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table and write names and symbols for ions.

Group Numbers1

2 13

14

15

16

17

18

6

CCarbon12.011

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

Protons Neutrons Mass number

Electrons Element

+

0

+

0

-

-

Protons Neutrons Mass number

Electrons Element

2 2 4 2 Helium

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 nowII. Subatomic particle notes and using the

periodic tableIII. Practice problemsIV. Modeling atomic structureV. Exit TicketHomework: Week 7 HW page 1-3: tomorrow.Quiz tomorrow. Obj. 1, 2 and 3Video 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

+

0

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- -

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0

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0-

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- -

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0

+0

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-

+

+

+

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+0

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+0

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+

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00

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+0

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+0

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Protons Neutrons Mass number

Electrons Element

2 2 4 2 Helium

3 3 6 3 Lithium

5 5 10 5 Boron7 7 14 7 Nitrogen

10 10 20 10 Neon

11 11 22 11 Sodium

8 8 16 8 Oxygen

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

CCarbon12.011

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

Incre

asin

g a

tom

ic n

um

ber

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 nowII. Modeling atomic structureIII. Quiz on Objectives 1, 2 and 3IV. Isotopes and average atomic massHomework: Week 7 HW page 4-7:

TuesdayWatch 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.

Don’t worry about the neutrons – we’ll 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!

Isotope

Definition?

Isotopes: Using Hyphen Notation

element-mass number carbon-12 6 protons (carbon always has six) How many neutrons? carbon-14

Nuclear Notation

C126symbolmassnumbereratomicnumb

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/reviewII. Go over homework p. 1-3III. Obj. 1-3 quizIV. Review hyphen notation and

nuclear notationV. Calculating average atomic massVI. 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 element’s 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-6 92.5% lithium-7

Calculate the average atomic mass.

Mass spect rum of copper

69. 09

30. 91

0

20

40

60

80

100

63 65

mass number

rela

tive

num

ber

ofat

oms

Copper has two naturally occurring isotopes. They are present in the following percents: 69.09%

30.91%

Calculate the average atomic mass.

Cu6329

Cu6529

Calculate the average atomic mass of Ne

Mass spect rum of neon

91

0. 39

0

20

40

60

80

100

20 21 22

mass number

rela

tive

num

ber

ofat

oms

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 -182 26.62%tungsten-183 14.31%tungsten-184 30.64 %tungsten-186 28.43 %

Agenda

I. Do now/check homeworkII. Candium Pre-LabIII. Candium Lab!IV. Calculations, Data TableHomework: If you don’t 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!

(We’ll 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 labII. Expectations and CitizenshipIII. Homework answersIV. Track Unit 1 Quiz, organize, Track Unit

2 QuizV. A surprise for you!VI. Exit ticket: isotopes and average atomic

massesVII. Electron ConfigurationHomework: 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.

Don’t forget to make up the Unit 1 Objectives that you haven’t 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 nowII. Homework AnswersIII. Isotopes and average atomic mass

exit ticketIV. Electron arrangement!V. Orbital Notation and Electron

Configuration NotationHomework: 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. IonsHomework: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 andIonization 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 nowII. Track Exit Ticket and Quiz III. Week 8 HW answersIV. Trends on the periodic tableV. Exit ticket, Objectives 10-13VI. Element Facebook project instructionsVII. Work time!VIII.Track Objectives 10-13 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 andIonization 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 nowII. Track Exit Ticket and Quiz III. Week 8 HW answersIV. Trends on the periodic tableV. Fix Atomic Structure and Ionization

WorksheetVI. Exit ticket, Objectives 10-13VII. Introduce element facebook project

Homework

1. Homework: Element facebook page due Monday

You’ll 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 haven’t 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

1

2 3 4 5 6 7

81+

2+

3+

3- 2- 1-

Cations Anions

Lose e- Gain e-

Exit Ticket

Objectives 10-13

Homework

1. Homework: Element facebook page due Monday

You’ll 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 nowII. Exit ticketIII. Introduce element facebook project –

directionsIV. 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

2-18 19-86 from groups 1, 2, 13-18 only! Don’t 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 symbolcharge

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- O2-

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

N3- nitride ion O2- oxide ion F- fluoride ion S2- sulfide ion Cl- chloride ion Br- bromide ion I- iodide ion

Homework

Week 6 Homework #1-9Finish packet from classwork today p.

3-4Complete 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. Li2. Be3. B4. F5. O6. N7. Cl

8. P9. K10. Ca11. Al12. Se13. Br14. Kr

Lost or Gained Electrons?

1. Li2. Be3. B4. F5. O6. N7. Cl

8. P9. K10. Ca11. Al12. Se13. Br14. Kr

What ion is formed?

1. Li2. Be3. B4. F5. O6. N7. Cl

8. P9. K10. Ca11. Al12. Se13. Br14. 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?

Anion or Cation?

1. Li2. Be3. B4. F5. O6. N7. Cl

8. P9. K10. Ca11. Al12. Se13. Br14. Kr

Symbols for Ions

Element SymbolCharge

Li+

Cl-

Al3+

Number, then + or – No need to write a “1” 1 is often invisible in chemistry

Write the Symbol

1. Li2. Be3. B4. F5. O6. N7. Cl

8. P9. K10. Ca11. Al12. Se13. Br14. Kr

Names for Ions

Cations: Same name as the element Li+: lithium ion Sr2+: strontium ion

Naming Ions

Anions: Ending changes to “-ide” N3-: nitride ion O2-: oxide ion F-: fluoride ion S2-: sulfide ion Cl-: chloride ion Br-: bromide ion I-: iodide ion

Name the ions formed by these elements

1. Li2. Be3. B4. F5. O6. N7. Cl

8. P9. K10. Ca11. Al12. Se13. Br14. 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 IncreasesIo

niza

tion

Ener

gy In

crea

ses

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

Atomic Radius Increases

Significance of Chemical Formulas

Connection to Classification of Matter

What do you know about chemical compounds?

How do we