Ionic Bonds. Electron dot structures Show only the valence (outer) electrons Dots around symbol Equal dots to group number.

Slides:

Advertisements

Similar presentations

Chapter 7: Ionic and Metallic Bonding

Advertisements

Ionic Bonding.  Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form.

Introduction to Chemical Bonding

BONDING Ch 7& 8 – Honors Chemistry General Rule of Thumb: metal + nonmetal = ionic polyatomic ion + metal or polyatomic ion = ionic (both) nonmetal + nonmetal(s)

Take out your interactive notebook and set up an In, Out Through on your next two open pages.

Ionic Bonds Chemistry Mrs. Coyle.

IONIC BONDING When an atom of a nonmetal takes one or more electrons from an atom of a metal so both atoms end up with eight valence electrons.

6.1 Ionic Bonding.

An Introduction to Ionic Bonding Unit XX, Presentation 1.

Ionic Bonding. CA Standards  Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons.

Ch. 7: Ionic Compounds & Metals

Chemical Bonding.

Introduction to Chemical Bonding Bond Formation Ionic Bonds Covalent Bonds.

Objectives Know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic bonds.

Ions & Ionic Bonding. Ionatoms that has an electrical charge Ion: any atom or group of atoms that has an electrical charge. Since protons and neutrons.

Ionic and Covalent Bonding. » Atoms bond when their valence electrons interact ˃Atoms with full outermost energy levels are not reactive (Noble Gases)

Ionic Bonding & Covalent Bonding. Ionic Bonding Ionic Bonding – TRANSFER of electrons Metals + Nonmetals = Ionic Bond.

NOTES: Ions. Valence Electrons: ● Knowing electron configurations is important because the number of valence electrons determines the chemical properties.

Chemical Bonding…. How Atoms Combine Bonding involve electrons in the outermost energy level Valence Electrons.

Ionic and Covalent Bonds. Two or more elements chemically combined. Compound.

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.

Chapter 8: Ionic Compounds P Section 8.1 Forming Chemical Bonds P

Ionic Bonding Science 10 2 Keeping Track of Electrons The electrons responsible for the chemical properties of atoms are those in the outer energy level.

Ionic Bonding. Stable Electron Configuration When the highest occupied energy level of an atom is filled with electrons, the atom is stable and not likely.

Electron Transfer Dot Structures Ionic Compounds.

Notes 6 - Ions & Chemical Bonding. Unstable Atoms ► In order to be stable, an atom needs a certain number of valence electrons  2 valence e - if it only.

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

Midterm Review Chapter 5 & 6 Covalent and Ionic Bonding.

Ionic Bonding. CA Standards  Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons.

What are ionic bonds? Section 15-5.

Ionic Bonds and Compounds. The Octet Rule The Octet rule states that elements gain or lose electrons to attain an electron configuration of the nearest.

Ionic Bonding. What makes an atom most stable? Electron configuration – Electron configuration – When the highest occupied energy level is filled with.

Ionic Bonding. Chemical bond-the attractive force that holds atoms of ions together What was an ion? How are they formed? Ionic Bond- a bond formed between.

IONIC & COVALENT BONDING

IONS 7.1 Valence Electrons, The Octet Rule, and formation of Cations and Anions.

6.1 Ionic Bonding When the highest occupied energy level of an atom is filled with electrons, the atom is stable and not likely to react. – The chemical.

Ionic Bonds What is one way in which elements can achieve stable electron configurations? Some elements achieve stable electron configurations through.

Essential Questions: What are the processes by which different atoms come together to form new compounds and what forces hold solutions of these compounds/molecules.

CHEMISTRY BELL RINGERIAN PG. Week of 11/16/2015 Tuesday 11/17/15 1.DEFINE VALENCE ELECTRONS. 2.HOW ARE THE NUMBER OF VALENCE ELECTRONS OF THE REPRESENTATIVE.

Chemical Compounds. How is a chemical compound made? How is a chemical compound made? Mixture vs. chemical compound Mixture vs. chemical compound A compound.

Click on “Slide Show” Click on “From Current Slide” Or “From Beginning”

Ionic Bonding (Part I) One Atom’s Loss (of an Electron) is Another Atom’s Gain.

6-1: Ionic Bonding 6-2: Covalent Bonding 6-3: Naming Formulas and Writing Compounds.

Warm Up  How do you find an element’s valence electrons?  How many valance electrons does an atom need to be stable?

 Organization of electrons in energy levels  Each energy level can hold a certain number of electrons ◦ 1 st level=2 electrons ◦ 2 nd level=8 electrons.

Ionic and Metallic Bonding

Ionic Bonds Chapter 14.

Electron Configuration and Lewis Dot Diagrams

Lewis Dots & Ionic Bonding

Bundle 2: Periodic Table and Bonding

Ionic Bonds Chapter 15.

Why do atoms have a neutral (no) charge?

Bundle 2: Periodic Table and Bonding

Ionic and Metallic Bonding

Review of Ions Ion: an atom or group of atoms that has a positive or negative charge cation: a positively charged ion anion: a negatively charged ion.

BONDING General Rule of Thumb: metal + nonmetal = ionic

Formation of Ionic Compounds

How Elements Form Compounds

Bundle 2: Periodic Table and Bonding

It’s time to talk about Bonds…

Ions and Ionic Bonds.

Valence Electrons Electrons in the highest (outer) energy level

Ionic Bonds Chemistry Mrs. Meemari. Ionic Bonds Chemistry Mrs. Meemari.

Do Now: Sodium chloride also known as table salt is an ionic compound, which is regularly consumed by many Americans. However pure sodium and pure chlorine.

Chemical Bonds.

Ions and Ionic Bonds.

Presentation transcript:

Ionic Bonds

Electron dot structures Show only the valence (outer) electrons Dots around symbol Equal dots to group number

Elements within the same group have the same electron-dot structure.

Valence Electrons Valence electrons are the electrons in the highest occupied energy level of the atom. Last number in electron configuration Valence electrons are the only electrons generally involved in bond formation.

Two types of bonds Ionic: between a metal and a nonmetal, electrons are transferred Covalent: between two nonmetals, electrons are shared All bonds help fulfill the octet rule=all elements want 8 valence electrons Except H, He, Li, and Be that want only 2

Na, 11 e 1s 2 2s 2 2p 6 3s 1

Na +, 10e 1s 2 2s 2 2p 6

A Positive Ion (Cation): An atom that has lost one or more electrons. + charge Metals form cations

Chlorine Atom  Chlorine Ion Cl 1s 2 2s 2 2p 6 3s 2 3p 6

A Negative Ion (Anion) An atom that has gained one or more electrons. Negatively (-) charged. Nonmetals form anions

When Na, (11) loses its valence electron, what element does its configuration look like ? a. Neon b. Potassium c. Beryllium d. Sodium Check your Neighbor

Ionic Bonds Bonds that are formed by transfer of electrons from one element to the other. Each element as an ion has a complete octet after the transfer of electrons.

Ionic Compound dot structures 1. show dot structures of original elements 2. Show arrows where electrons move 3. Show ending charges

Example: Formation of Lithium Fluoride. Li. + : F :..

The Ionic Bond The electrical force of attraction between oppositely charged ions holds the compound together. Na + F−F−

Naming ionic compounds Put the metal name first Put the nonmetal name second but change the ending to –ide NaCl K 2 O

Ionic charges Group 1=+1 Group 2= +2 Group 13=+3 Group 14=+/-4 Group 15=-3 Group 16=-2 Group 17=-1

Writing the formula for ionic compounds Write down the symbols and charges Criss cross the charges ignoring the signs Don’t write as subscripts 1 If the two charges are the same value there are no subscripts.