IONIC & COVALENT BONDING

Slides:

Advertisements

Similar presentations

MYP Chemistry Ionic Bonding and Ionic Compounds International College Spain.

Advertisements

Chapter 7: Ionic and Metallic Bonding

Ionic Bonding Science 10 1 Keeping Track of Electrons The electrons responsible for the chemical properties of atoms are those in the outer energy level.

Ionic Bonds Chemistry Mrs. Coyle.

Ch 7 PowerPoint Notes.

15.2 Notes: Ionic Bonds.

6.1 Ionic Bonding.

An Introduction to Ionic Bonding Unit XX, Presentation 1.

Valence Electrons l The electrons responsible for the chemical properties of atoms are those in the outer energy level. l Valence electrons - The electrons.

Chemistry Chapter 8 Notes #2.

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

Chemistry Chapter 8 Notes #1 Ions Compounds  2 or more elements combined Example: Sodium + Chlorine = Sodium Chloride (which is table salt) A compounds.

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

Ions and Ionic Bonding 7.1, 7.2, 9.1, 9.2.

 Sports drinks consist primarily of water, sugar and salt, with addictives to give a particular taste.  Sports drinks were developed to help football.

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

Ionic and Metallic Bonding

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.

Chapter 15 Ionic Bonding. Valence Electrons  Do the electron configuration for the following elements Li Be B O F Ne.

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

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

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.

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

Ionic and Metallic Bonding

8.2 Ionic Bonding. Ionic Bonds Ionic bonds are made between metal and non-metal atoms Electrons are transferred from the metal atom to the non-metal atom.

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

Chapter 4 Part 1 - Ionic Compounds Electron Review l Valence electrons - electrons in the outer energy level. l Core electrons -those in the energy levels.

Chapter 8: Ionic Compounds

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.

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

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.

1.  Chemists believe that many chemical compounds contain ions  Common Properties of these compounds: ◦ High melting point (ex: salt melt at 800*C)

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.

Unit 6A: Ionic and Covalent Bonding. Ions Why do elements in the same group behave similarly? They have the same number of valence electrons. Valence.

IPC Notes Types of Bonds. Remember… Atoms combine by gaining, losing or sharing electrons in order to become chemically stable. Atoms become chemically.

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.

Chapter 7 “Ionic and Metallic Bonding”. Section 7.2 Ionic Bonds and Ionic Compounds l OBJECTIVES: –Explain the electrical charge of an ionic compound.

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.

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

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.

Warm-Up: Put on Page 14 l Write the electron configuration, orbital diagram, and electron dot diagram for the following elements: 1.Iron 2.Sulfur.

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

Ionic and Metallic Bonding

Chapter 7 Ionic and Metallic Bonding 7.2 Ionic Bonds and

Bundle 2: Periodic Table and Bonding

Ionic Bonding ..

Chapter 7 Ionic and Metallic Bonding 7.2 Ionic Bonds and

Formation of Ionic Compounds

How Elements Form Compounds

Ionic and metallic bonding

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

NC Standards Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic.

“Ionic and Metallic Bonding”

NC Standards Students know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic.

Chapter 7 “Ionic and Metallic Bonding”

Chemical Bonding III. Ionic Compounds.

“My name is Bond, Ionic Bond; taken, not shared!”

Presentation transcript:

IONIC & COVALENT BONDING THE OCTET RULE

Octet Rule Atoms bond in order to achieve an electron configuration that is the same as the electron configuration of a noble gas Ie. They have 8 electrons in their filled outer energy level (except He)

Chemical Bond The force of attraction between two atoms or ions.

IONIC BONDING Some elements tend to gain electron(s) readily while others tend to lose electron(s) (low I.E.) When an active element (metal) reacts with an active non-metal), electrons are transferred from the metal to the non-metal. Atoms of the non-metal become anions while the metals become cations. These ions are attracted to each other by electrostatic forces.

Electrostatic Forces Attraction between oppositely charged particles.

Ionic Bond The type of chemical bond resulting from the electrostatic force of attraction between oppositely charged ions (as formed when metallic atoms transfer electrons to non-metallic atoms).

Example: electron dot formula to show the formation of the ionic compound NaCl  sodium chloride  table salt

Formation of Cation sodium atom Na sodium ion Na+ 11p+ 11p+ e- e- e- loss of one valence electron 11p+ e- e- e- e- e- e-

Formation of Anion chlorine atom Cl chloride ion Cl1- 17p+ 17p+ e- e- gain of one valence electron 17p+ e- e- e- e- e- e- e- e- e- e-

Formation of Ionic Bond chloride ion Cl1- 17p+ e- sodium ion Na+ 11p+ e- e- e-

IONIC BONDING: Formation of Magnesium Chloride Cl Cl Mg2+ Mg Mg2+ Cl Cl Loses 2e- Each gains 1e- One magnesium ion Two chloride ions Mg2+ Cl1- [(2+) 2 (1-) = 0] MgCl2 magnesium chloride

Ionic Bonding Na Cl

Ionic Bonding Na+ Cl-

Ionic Bonding All the electrons must be accounted for Ca P

Ionic Bonding Ca P

Ionic Bonding Ca2+ P

Ionic Bonding Ca2+ P Ca

Ionic Bonding Ca2+ P 3- Ca

Ionic Bonding Ca2+ P 3- Ca P

Ionic Bonding Ca2+ P 3- Ca2+ P

Ionic Bonding Ca Ca2+ P 3- Ca2+ P

Ionic Bonding Ca Ca2+ P 3- Ca2+ P

Ionic Bonding Ca2+ Ca2+ P 3- Ca2+ P 3-

Ionic Bonding = Ca3P2 Formula Unit Calcium Phosphide

Ionic Compound A pure substance composed of positively charged ions and negatively charged ions in a fixed ratio

Classwork problems (a) Show the bonding between the following Magnesium and Oxygen Potassium and Chlorine Calcium and Fluorine Lithium and Nitrogen Aluminum and Fluorine

Homework problems These are slightly harder Magnesium and Phosphorus Beryllium and Nitrogen Calcium and Sulphur Magnesium and Nitrogen Aluminum and Oxygen

Ionic Bonding

Crystalline structure i.e. Crystal lattice structure  the rigid arrangement of ions Solution animation

What happens when only non-metal elements are involved? . . . . . . . . COVALENT BONDING