Lesson 3 Title today’s notes: Lesson 3 Oxidation Numbers

Slides:

Advertisements

Similar presentations

Chemical Bonds CovalentPolar Non Polar IonicMetallic.

Advertisements

Using the cards – Match up the element’s symbol with its atomic structure.

DO NOW – 2/10/10 Create a Venn Diagram of Covalent Bonds versus Ionic Bonds 3 items in each space, write a 4 sentence summary Turn in at the end of class.

Orginally prepared and distributed by Jefferson Lab Office of Science Education education.jlab.org/jsat/powerpoint/chembond.ppt.

LecturePLUS Timberlake1 Chapter 4 Compounds and Their Bonds 4.1 Valence Electrons 4.2 Octet Rule and Ions.

Bonding. This presentation shows two types of bonding. Ionic bonding Covalent bonding Click on the type of bonding you want to view.

Ions and Ionic Bonding. Electrons and Energy Levels First, let’s review: First, let’s review: Electrons are found in energy levels Electrons are found.

Using Bohr Diagrams to Show the Formation of Ionic Compounds.

Ionic Compounds Compounds can be broken into several categories. The first type of compound we are going to study are ionic compounds. Ionic compounds.

Compounds and Their Bonds

Chemical Bonds. 2 Types of Chemical Bonds 1. Ionic 2. Covalent.

Chapter 8 Ionic Compounds Define chemical bond Describe the formation of postive & negative ions.

 atoms that are now stable because they have gained or lost valence electrons resulting a positively or negatively charged atom.

Chemical Bonds. Quick review: Lewis (electron)Dot A)What is a Lewis dot diagram A way to represent the potential reactivity of an atom without drawing.

Positively charged ions and negatively charged ions are attracted to each other and this attraction is the basis of ionic bonding.

Neutral- Describes atoms with the same # of protons and electrons All atoms are neutral until they lose or gain an electron ALL ATOMS WANT TO BE STABLE.

Hello. My name is Bond, Ionic Bond.. Ionic Bonds valence electrons: outer-most electrons that are used in bonding; electrons in the highest occupied energy.

Opener: What is an ion? How does a ion form? mic/ionicact.shtml.

What are POLYATOMIC IONS?. What is a group of atoms with charge? back to naming compounds Lets first review what a monatomic ion is.

More on Electrons ! !. Find the electron configuration and draw the orbital diagram for…. Na.

Chemical Bonds & Reactions Chemical Bond A force of attraction that holds two atoms together Has a significant effect on chemical and physical.

Ionic Bonds. Ions are atoms that have become charged by gaining or losing electrons. Cations are positively charge ions (metals). Anions are negatively.

Chemical Bonds. - Element: A substance that cannot be chemically converted into simpler substances; a substance in which all of the atoms have the same.

More About Chemical Bonds In your science notebook, copy all question and analysis and provide a complete answer for each.

 Magnesium  Aluminium  Zinc  Iron  Copper Magnesium can displace copper from copper oxide – WHY? Mg (s) + CuO (s) → MgO + Cu.

Bellringer Write the electron configuration, orbital notation, and electron dot structure for both Na and Cl: NaCl Electron Configuration: Orbital Notation:

Teacher Notes for Science ATC lesson on Oct. 25, 2011 Lesson Objective: 10 th grade ATC students will use Lewis Electron Dot structures of various elements.

Ionic & Covalent Bonds.  A compound is a substance whose smallest unit is made up of atoms of more than one element bonded together.

Valence Electrons and Ions. Periodic Table of the Elements.

Valence Electrons & Diagraming Elements Chemical Bond A force of attraction that holds two atoms together Has a significant effect on chemical.

Chapter 10 Ions. An ion is an atom, or group of atoms, that has a net positive or negative charge. cation – ion with a positive charge If a neutral atom.

Valence electrons Valence electrons are those electrons that are lost or gained when elements combine.

Chapter 5 Valence electrons.

Draw a Bohr Model of Chlorine (Cl)

Electrons and Chemical Bonds Part 2

Ionic Bonding Formation of IONS.

Chapter 6 Valence electrons.

Review – What have you learned?

Ions and the Octet Rule.

What are POLYATOMIC IONS?

IONS Big Idea Atoms can gain or lose electrons to form charged particles called IONS.

Forming compounds day 2 Ionic Bonds

Bellwork: What happens in an ionic bond?

Chapter 7 Ionic and Metallic Bonding 7.1 Ions 7.2 Ionic Bonds and

Goal: To master Learning Targets #1-5 on chemical bonding

Atoms and Elements.

Warm-Up Which family/group is the only stable group found on the periodic table? What is an ion? How many valence electrons does Phosphorous (P) have?

Chapter 4 Compounds and Their Bonds

List facts that you remember about ionic and covalent compounds

Chapter 13 Chemical Formulas.

Chemical Bonds.

Chapter 4 Compounds and Their Bonds

Bell work: Bohr Diagrams/ Lewis Dot Basics

Ions -An ion is an atom that has either more electrons or less electrons beyond a neutral atom -There are patterns for which elements will typically give.

AIM: How to write Lewis Dot Structures (Electron Dot Structures)

RED What is chemical bonding? What is a chemical bond?

Chapter 4 Compounds and Their Bonds

Chemical Bonds & Reactions

MT 2 Chemical Bonds Terms.

Chemical Bonds.

Forming Ionic Bonds When atom gains or loses electrons, it becomes a charged ion. The charge on the ion explains how many electrons an atom has gained.

Ions & Lewis Dot Structures

After today, you will be able to…

Chemical Bonds.

Chapter 4 Compounds and Their Bonds

Lesson 2 Title your notes:

How Atoms Combine.

Drawing Lewis Dot Structures for Ionic Compounds

We are starting a new unit

Presentation transcript:

Lesson 3 Title today’s notes: Lesson 3 Oxidation Numbers Read the slides and take notes.

Oxidation Number The charge that an atom would have if it lost or gained electrons; ionic charge Can be helpful in determining which atoms will interact or bond with each other Example: According to electron dot diagram for Magnesium, it has two valence electrons. Because Magnesium is “unhappy” with two, it will typically lose them. If this happens it will turn into a Magnesium ion. At this point it will have an oxidation number of +2. 2+ Mg

What Could the Oxidation Number Be? +1 or -1 because it can gain or lose one electron -2 because it will gain two electrons Ne Sr 0 because it will not gain or lose electrons +2 because it will lose two electrons

Practice with oxidation numbers Go back to the class website and click on the link titled: Assignment 3 Oxidation numbers practice and complete the assignment in your notebook.