1.Lewis Dot structure for francium bonded to chlorine:

2. Ionic bonds most commonly form between???

3. Where would you find elements that form cations on the periodic table?

Day 5 3-1

______ compounds break apart into ______ when dissolved in water and conduct electricity.

This morning I slipped in some mystery liquid in the kitchen with the toaster, luckily for me I was not electrocuted, based on this do you think I was in an ionic or molecular compound?

How do we name and represent different substances?

Day 5 3-1

Chemical bonds that result from the electrical attraction between large numbers of cations and anions

Cation – ?

Anion – ?

Ionic bonds – REVIEW

Ionic bonds most commonly form between …?

REVIEW

Ionic bonds are made up of charged pieces (ions) … Ions can be made up of single atoms or groups of atoms bonded together (polyatomic ions)

Anion

Electrostatic force

Electronegativity

Nonpolar covalent bond

Stable

Penn State

Chemical bond

Cation

Octet rule

Valence electrons

1.Get out the new notes. What is a binary ionic compound?

Day 1 3-5

Binary ionic compound – ionic compound consisting of only 2 elements (monatomic ions)

Naming:

Name the cation and add an ide ending to the anion

Examples:

sodium and chlorine form…

sodium chloride

magnesium and oxygen form…

magnesium oxide

Bromine bonds with sodium

Cesium bonds with oxygen

Silver bonds with fluorine

Sodium bromide

Cesium oxide

Silver fluoride

chlorine bonds with lithium

magnesium bonds with sulfur

aluminum bonds with oxygen

Lithium bromide

Magnesium sulfide

Aluminum oxide

Problem… names do not directly indicate ratio of ions…

Answer… empirical formula

Li2O NaCl MgF2

Determining formulas – Crisscross method

Determining formulas – Crisscross method

1. determine charges

2. Take away the +/- and crisscross them to determine subscripts

Determine the empirical formula for an ionic compound containing…

potassium and fluorine

calcium and fluorine

cesium and sulfur

aluminum and oxygen

Name the compounds formed when the following elements bond:

1.Calcium and fluorine

2.Chlorine and strontium

3.Silver and oxygen

Write the formulas for the following compounds:

1.Lithium bromide

2.Barium chloride

3.Sodium oxide

calcium fluoride

lithium oxide

Formulas:

Rb2SNAMING:

Day 2 3-6

Homework:

Read / review section 9.1 and complete #s 3-8

on page 269

Throwing in the transition metals:

Use roman numerals if more than one charge is possible

Roman numeral = charge, if none use sheet, then same as binary ionic compounds

NAMING:

FORMULAS:

The weird guys…

Throwing in the transition metals:

FeO

Au2S

CuF2

PbS

SbF3

NAMING:Work backwards - the overall charge in a compound must be 0

Throwing in the transition metals:

Lead II oxide

Silver bromide

Ferric Chloride

Formulas:

calcium fluoride

cobalt III oxide

cuprous chloride

Formulas:

Rb2S

NiO

CuF

NAMING:

Throwing in the transition metals:

FeO

Au2S

CuF2

PbS

SbF3

NAMING:Work backwards - the overall charge in a compound must be 0

Throwing in the transition metals:

Lead II oxide

Silver bromide

Ferric Chloride

Formulas: