2,2,2 Sodium Chloride as a typical Ionic Solid

Slides:



Advertisements
Similar presentations
Types of chemical compounds
Advertisements

Ionic Bonds and Properties of Ionic Compounds.  Recall that atoms lose or gain electrons to form ions.  Metals tend to lose electrons and form positively.
Ionic Bonding “Students know atoms combine by exchanging electrons to form ionic compounds, and that salt crystals, such as NaCl, are repeating patterns.
Valence Electrons l The electrons responsible for the chemical properties of atoms are those in the outer energy level. l Valence electrons - The electrons.
By Alex, Matt, Kit and Katie
By: Racquel Cantu & Nicole Keeler(:. Formation of Ions *An atom that has a net positive or negative electric charge is called an ion. *An ion with a negative.
Chapter 6 Ionic Bonds.
COVALENT BONDS Chapter 5 Section 3.
 Sports drinks consist primarily of water, sugar and salt, with addictives to give a particular taste.  Sports drinks were developed to help football.
Ionic Bonding Structure and properties of ionic substances.
Introduction to Ionic Compounds. Many ions have a noble gas configuration Ions with a noble gas configuration are stable.
IONIC BONDING.
The structure of ionic compounds There are many ionic bonds (electrostatic forces) in an ionic compound such as sodium chloride, arranged in giant lattice.
 Define these words  Ion  Ionic bond  Ionic compound  Chemical formula  Subscript  Covalent bond.
Main 1 LO: Define what ionic solids & molecular solids are Work in pairs to study the information on ionic and molecular solids Jot down key ideas on the.
Bonding Of the Chemical Kind. Bonding and Properties u Compounds are formed by fixed ratios of atoms forming chemical bonds (Dalton) u When elements form.
Properties of ionic compounds Standard chem Objectives 7 Properties of ionic compounds and relation to the ionic bond.
Properties of Ionic and Covalent Compounds
What are ionic bonds? Section 15-5.
 The goal of every atom is to become stable – most elements have partially filled outer shells and they must bond with another atom to become stable.
SECTION 1.2 PAGES 8-11 Types of Chemical Bonds. Ion Formation Ions are charged particles that form during chemical changes when one or more valence electrons.
What is the bonding in sodium chloride like?
BONDING. WHY ATOMS COMBINE -1 All atoms want a full outer shell Some atoms will lose electrons to empty their shells These become positively charged ions.
IONIC BONDING. HOW DOES IT WORK? Ionic bonding takes place between metals and non-metals Metal atoms try to attain noble gas strucure (full outer shells)
IONIC BONDING. STRUCTURE AND BONDING The physical properties of a substance depend on its structure and type of bonding present. Bonding determines the.
Ionic substances C2.1/2 10-Jul-11. Metal + Non-metal Metal atoms Non-metal atoms + ions– ions electrons Ionic compound Atoms get full outer shells.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding Copyright © Houghton Mifflin Harcourt Publishing Company.
GIANT IONIC LATTICES.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding
Ionic Bonding Noadswood Science, 2012.
1.2 Ions Year 9 Science 2012.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding
Macromolecular / giant covalent Molecular / simple covalent
Major Bond Types COVALENT e- are shared between 2 atoms
Chemistry Comparing Bonding.
KS4 Chemistry Comparing Bonding.
The way things are joined together
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding
Bonding & Properties of Substances
RECAP: Chemical Bond The forces that hold groups of atoms together and make them function as a unit Bonding involves only the valence electrons There are.
Properties of Substances
Ionic Bonding.
Macromolecular / giant covalent Molecular / simple covalent
Structure and Properties of Ionic and Covalent Compounds
Bonding… what the force?
Ch 5 Ions and Ionic Compounds
Ionic Vs Covalent bonds
Ionic Bonding.
Ionic Bonds.
PARTICLES THAT SUBSTANCES ARE MADE OF
[ ] [ ] + - AQA BONDING, STRUCTURE AND THE PROPERTIES OF MATTER 1
30/11/2018 nrt.
Properties of compounds depending on the chemical bond
Ionic Bonding and Salts
Chemical Bonding!.
Chemical Compounds Chapter 10 Pages
Chemical Bonding.
Ionic Solids 201 Chemistry.
COVALENT BONDS Chapter 5 Section 3.
Chemical Bonds.
Ionic Bonding Chapter 27.
Notes- Properties of Ionic Compounds #3
C2: Structure, bonding and the properties of matter
C4 – Chemical changes Key Concepts.
Ionic Bonding.
Warm-Up 10/17/16 Name the difference between an ionic and covalent compound that you learned Friday.
Chemical Compounds Chapter 10 Pages
Chemical Bonding.
Ionic Bonding.
Presentation transcript:

2,2,2 Sodium Chloride as a typical Ionic Solid

Crystals

Crystalline They have regular geometric shapes Lattice structure made up of positive and negative ions Shape depends on arrangements of these ions Arrangement depends on relative size and relative abundance of each type of ion Ions are tiny – positive ions are smaller than the corresponding atoms

Crystal Lattice Sodium ion Chloride ion

Face-centred Cube Sodium ions are smaller than Chloride ions 2 shells as opposed to 3 shells Ratio 1 Na+ : 1 Cl- Relative size and number of each ion determines arrangement Face-centred cube

Properties of Ionic Compounds

Melting and Boiling Points High Boiling and Melting Points Each ion held in place by 5 oppositely charged ions There fore difficult to break away

Conductivity Do not conduct when solid because electrons tightly held in full outer shells Ions are trapped by six oppositely charge ions Conduct with electrolysis when molten (fused) or in solution Ions are free to move in both conditions and have electrons added at cathode and pulled off at anode causing the chemical reactions

Solubility Many soluble in water due to polar nature of water Insoluble in organic solvents such as benzene and cyclopropane because these are covalent and like dissolves like

- - - - - Brittle + + + Force Hard as difficult to move because every ion is firmly held by 6 other ions with opposite charge Once they move the tiniest amount – the like charges line up and repel, and crystal shears along a plane + - Force - + - - - +

Ionic materials in everyday life You need to know two uses Salt [sodium chloride] tablets are taken especially in hot climates to replace salt lost by sweating. Iron sulphate tablets are taken to treat anaemia which has many causes. The iron is needed to make blood as it occupies the centre of haemoglobin molecules