Catalyst 8/27/13 Please take out your homework (1.3) so I may give you credit for it (you’re not passing it up this time) On your Catalyst Sheet, please.

Slides:



Advertisements
Similar presentations
All matter is made up of atoms
Advertisements

Catalyst 1.Open up the Bohr’s Model educanon video for today’s class. Complete the questions associated with the video. 2.Put your laptop at 45 degrees.
Chemical Bonding Leyda 2012.
Unit 4: Atomic Structure and Chemical Bonds
Catalyst 1. Order the following elements from smallest electronegativity to largest ionization energy: Aluminum, Silicon, Phosphorous. 2. Why does Germanium.
Catalyst 9/6/13 On your Catalyst Sheet, please answer the following questions: 1. What happens to electronegativity (EN) or ionization energy (IE) as you.
Bohr Diagrams for Ions. Showing Protons, Neutrons and Electron Arrangements.
How to do it… Step One: The Octet (8) rule…Atoms will gain or lose electrons to have a total of 8 electrons in their outer shell.
Atoms & Chemical Bonding Created in 2008 by Tim F. Rowbotham, Modified in 2011.
Patterns in the Periodic Table
Electrons and Ions Unit 3. Electron Energy Levels  What are electrons and where are they located?  Small negatively charged particles  Located in the.
2.4 Compounds, Atoms, and Ions
Valence Electrons and Electron Configuration Explaining the arrangement of electrons 08/26 to 08/28.
Catalyst 9/4/13 On your Catalyst Sheet, please answer the following questions: 1. What happens to ionization energy as you go down a group? 2. Sort from.
Catalyst 1. List an element from the following groups: alkali, alkaline earth metal, transition metal, halogen, and Noble gas. 2. Why do different groups.
AIM: How to write Lewis Dot Structures (Electron Dot Structures) DO NOW: 1. READ BOTH SIDES OF THE HANDOUT. 2. WRITE THE ELECTRON CONFIGURATION (ORBITAL.
The structure of an Atom
The Periodic Table & Formation of Ions
Bohr Models, Valence and the Octet Rule
Unit 5 Section 2 Notes A Guided Tour of the Periodic Table.
Review of Major Concepts Taught in Grade 9 Chemistry
Using Bohr Diagrams to Show the Formation of Ionic Compounds.
11/19/12 ActivityTime Bell Ringer5 minutes Announcements5 minutes Bell Ringer Review2 minutes Quiz Review10 minutes Notes on Ions10 minutes Individual.
Do Now 1/7/10 Explain IN COMPLETE SENTENCES why atoms are neutral in charge. HINT: think about the charges and numbers of the subatomic particles Reminder:
Chemistry Matter and Change
Nobel Gas Envy.
Notes: Ions Two ions are talking to each other in solution. One says: "Are you a cation or an anion?" The other replys, "Oh, I'm a cation." The first asks,
Variation in Atomic Structure: Isotopes and Ions Monday November 14 th and Tuesday November 15 th.
 Cool video clip!  Housekeeping  Intro to Electromagnetic Waves and Electrons › Netbook research activity › Mini presentations  Homework: None for.
Catalyst 1. What are the trends for ionization energy on the Periodic Table? 2. Sort from lowest to highest IE: C, F, O 3. Sort from highest to lowest.
Valence Electron Interaction and Charges. The Role of Electrons in Bonding The sharing or transfer of electrons is what holds atoms together in a compound.
Catalyst 1. List an element from the following groups: alkali, alkaline earth metal, transition metal, halogen, and Noble gas. 2. Why do different groups.
IPC Notes Types of Bonds. Remember… Atoms combine by gaining, losing or sharing electrons in order to become chemically stable. Atoms become chemically.
ATOMS AND IONS What’s the difference?. Atoms vs. Ions  Atoms  Have no overall charge.  The number of protons equals the number of electrons.  Ions.
Ch. 5 Ionic Compounds Section 1 Simple Ions. Questions To Think About 1. What is the difference between an atom and an ion? 2. How can an atom become.
Unit #1 - Chemistry in Action Lesson #4 - Bohr Diagrams
Do Now 1/12/10 Explain IN COMPLETE SENTENCES why atoms are neutral in charge. HINT: think about the charges and numbers of the subatomic particles Reminder:
Login: Student ID # User Name: Last Name. First Initial
Valence Electrons  The number of electrons in the outermost energy level (shell) The currency of the atomic world Can be found from Bohr models/electron.
IONS 7.1 Valence Electrons, The Octet Rule, and formation of Cations and Anions.
Chemistry of Life Matter and Energy: What are we made of?
When an atom gains or loses electrons they become electrically charged particles called When an atom gains or loses electrons they become electrically.
First 20 Elements in the Periodic Table
Li Ne K O Atomic structure Mass number
2.3 Periodic Table and Atomic Theory
Grade 9 Chemistry review
Lewis Structures and Ions
Draw a Bohr Model of Beryllium Draw a Bohr Model of Chlorine Activity
Review – Atoms and Isotopes
End Catalyst The periodic table is arranged by what?
Evaluation/ Assessment
STARTER Complete the word wheel. Write the keywords in a short paragraph but they must be in the order of the word wheel. Electrons Atomic Mass Protons.
Ionic bonding.
Ions Atoms are identified by which particle? PROTONS!
LECTURE 3.4 – LEWIS STRUCTURES
Section 4.1 Atoms and Ions.
Bohr Model Bohr diagrams show how many electrons appear in each electron shell around an atom The first electron shell holds 2 electrons.
Lewis Structures and Ions Do Now:
Periodic Table Of Elements
The Structure of Matter (Science 10 Review)
Warm-Up 11/18/14 Draw the Lewis dot structure of a phosphorus atom.
Octet Rule & Ions Unit 1 Notes.
1/7/16 Objective: SWBAT correctly name and predict the charge on any ion from the representative elements. Due Today: 1.5 inch 3 ring binder Agenda: Warm-up.
Warm-Up (11/15) Explain Bohr’s model of the atom. (Use your notes from the history of the model of the atom) List the models of the atom in order from.
Atomic Structure Electron Configuration, Valence Electrons, and Ions
Chapter Warm - Up 1. Describe the different parts of an atom.
Evaluation/ Assessment
8.5B: Protons and Electrons Re-templated JPh 7/31
“My name is Bond, Ionic Bond; taken, not shared!”
Ionization.
Presentation transcript:

Catalyst 8/27/13 Please take out your homework (1.3) so I may give you credit for it (you’re not passing it up this time) On your Catalyst Sheet, please answer (don’t copy the questions): 1.What are the horizontal rows and the vertical columns called on a periodic table? 2.How is the periodic table arranged? Why is it arranged this way?

Announcements 1. Write down today’s homework: Homework: 1.4 – The Octet Rule and Ions due Wednesday 2. Quiz on LTs on Wednesday!

Lab Reports Someof you did not turn in your lab reports! – So right now some of you have NPs! – Remember, lab reports are weighted 3 – I will give you all 2 weeks from today to turn in all late lab reports

Lab Reports: What I Saw GOOD Introductions were nice (included title, statement of problem, and hypothesis) Methods were usually in own words, paragraph form, and summarized the procedure well NOT SO GOOD Data & Analysis section missing data table & graphs! Most conclusions barely covered any of the points on the template and were not in- depth

1.3 Homework Solutions

Lecture 1.4 – Electron Configurations and the Octet Rule

Today’s Learning Target LT 1.4 (part 1) – I can determine the number of valence electrons for an element and draw a Bohr electron configuration for an element.

How do you draw Bohr diagrams?

I. Essential Point Atoms do not have a charge Neutral atoms have equal numbers of protons and electrons. So, atomic number also tells us the number of electrons.

II. Periodic Table Nomenclature Groups – Vertical columns on the Periodic Table Periods – Horizontal rows on the Periodic Table Periods Push Across Groups Go Down

Bohr Model of the Atom

III. Electron Orbits The first orbit holds 2 electrons Every other orbit after the first orbit holds 8 electrons.

IV. Valence Electrons Valence Electrons – The number of electrons that are in the outermost electron orbit

Class Example Draw the Bohr electron configuration for lithium. Determine the number of valence electrons.

Table Talk Draw the Bohr electron configuration for sodium. Determine the number of valence electrons.

Stop and Jot Draw the Bohr electron configuration for potassium. Determine the number of valence electrons.

SHORTCUT! All elements in the same group (1A, 2A, etc.) have the same number of valence electrons.

SUMMARIZE

Gallery Walk There are 8 problems posted around the room. You and your partner must complete all 8 as a team. When completed, show to Mr. Pan You must complete all 8 problems.

Gallery Walk Answers

What is the Octet Rule?

I. The Octet Rule Atoms like to have a full outer valence shell They will gain or lose electrons to have an outer orbit with 8 electrons (or 2 if it is the first energy level). Gain/lose based on what is easiest.

Class Example Draw the Bohr electron configuration for beryllium after it has satisfied the Octet Rule.

Table Talk Draw the Bohr electron configuration for magnesium after it has satisfied the Octet Rule.

Stop and Jot Draw the Bohr electron configuration for calcium after it has satisfied the Octet Rule.

Octet Rule SHORTCUT! All elements in the same group gain/lose the same number of valence electrons.

What are the types of ions that can form?

I. Ions When atoms gain/lose electrons, they gain a charge. Ion – An charged atom due to unequal number of protons and electrons Cation – A positively charged ion Anion – A negatively charged ion

Cats make people feel positive

Class Example Determine the ion that forms for fluorine after the Octet Rule has been satisfied.

Table Talk Determine the ion that forms for nitrogen after the Octet Rule has been satisfied.

Stop and Jot Determine the ion that forms for oxygen after the Octet Rule has been satisfied.

Ion Shortcut! All elements in the same group form ions with the same charge.

SUMMARIZE

The Octet Rule Song

Rally Coach 1) Each of you will pair up with the person that is across from you. 2) Pick who is Partner A and who is Partner B. 3) You will grab a whiteboard and a marker. 4) When I say go. Partner A will read the question aloud to Partner B. Then, Partner A will walk Partner B through the steps that need to be taken to get the final answer. MAKE SURE TO DO ALL THE STEPS! 5) I will call time after 30 seconds and each pair will raise their board in the air. 6) After I ask groups about your answers, the partners switch roles and Partner B does the questioning and reasoning and Partner A does the writing.

Question 1 Draw the Bohr electron configuration for Neon. Draw the Bohr electron configuration for Neon.

Question 2 Draw the Bohr electron configuration for Sulfur Draw the Bohr electron configuration for Sulfur

Question 3 Determine the number of electrons Phosphorus would gain or lose to satisfy the octet rule. Determine the number of electrons Phosphorus would gain or lose to satisfy the octet rule.

Question 4 Determine the number of electrons magnesium would gain or lose to satisfy the octet rule. Determine the number of electrons magnesium would gain or lose to satisfy the octet rule.

1.4 Homework Spend 5 minutes to get started on your homework and pratice for the exit slip.

Exit Slip 1.How are elements arranged on the periodic table? Why? (answer in complete sentences) 2.Draw the Bohr structure for Phosphorus 3.How many electrons must this phosphorus atom gain/lose to satisfy the Octet Rule? What will the charge of its ion be? 4.What is wrong with the drawing to the right?

Exit Slip Answers 1.Elements are arranged by increasing atomic number on the periodic table. The reason is because the atomic number makes each element unique.

Exit Slip Answers 2.

Exit Slip Answers 3. The phosphorus atom must gain 3 electrons to satisfy the octet rule. The charge of the ion is 3- or The drawing on the right should have 8 electrons in the second shell (and none on the third). The 5 electrons on the outside should be in this second shell instead.

Rate Yourself Based on the exit ticket and your current level of understanding, rate yourself 1 – 4 on LT 1.4 Also, please rate yourself on LT 1.1 – 1.3

Reminders! 1. Write down today’s homework: Homework: 1.4 – The Octet Rule and Ions due Wednesday 2. Quiz on LTs on Wednesday!