NAMING IONIC AND COVALENT COMPOUNDS

October 17th and 18th

Bell work

http://www.cnn.com/2013/10/23/studentnews/sn-curriculum-thu/index.html

http://tweentribune.com/teen/would-you-ride-car-no-driver

ATOM or ion?

Atom is the smallest and most indivisible unit of matter If our atom gains or loses electrons it

becomes an ion

H+ -

Lost e- Gained e-

NEUTRAL

Negative ionPositive ion

“Cation”“Anion”

Ionic Compounds

Are made up of a metal and a non-metal.

Example = NaCl

Naming Ionic Compounds

Rules: The metal goes first Second is the nonmetal + ide

Example 1: Lithium and Bromine LiBr

Example 2: Calcium Fluoride =

What does “ide” look like??

Br = Bromide I = ________________________ O = ________________________ F = _______________________ N = ________________________ P = ________________________ Cl = _______________________ S = ________________________ H = ________________________

Level 1

NaBr CaBr2

FrBr MgBr2

MgCl2 K2O

How to find Ionic charges

FIND THE NEAREST NOBLE GAS Count FORWARD OR BACKWARD to

the noble gas Which direction is quicker to get to the

noble gas group? Whatever this # is, this is your charge

MOST OF THE TIME

How to find Ionic charges

Level 2: Write the Formula

Example: Sodium Chloride NaCl

Beryllium Bromide Cesium Bromide Sodium Fluoride Calcium Phosphide Lithium Chloride Magnesium Sulfide

Type (II) Transition Metals

Name the transition metal first. Use Roman Numerals to specify charge. Add “ide” to the end of non-metal.

Example 1: Copper (III) Iodide =

Example 2: AuI4 =

Level 3: Transition Metal Name Examples: Copper (III) Iodide = CuI3

Gold (VI) iodide = AuI4

Nickel (I) oxide Iron (V) fluoride Cobalt (II) oxide Tin (III) nitride  Manganese (VII) oxide Niobium (V) chloride Titanium (III) phosphide Palladium (IV) sulfide

Level 4: Transition Metals (Other Direction)

EXAMPLES!!

Cr2O3 = Chromium (III) Oxide CuF2 = Copper (II) Fluoride

CuF PbCl4 PbI2

CrO3 NiO AuBr

Polyatomic IonsHere are some common ones:

Waste product of animals

Chemical warfare

Mixed with carbonate and water get you the “fizz” in soda!

Drinking water, soaps, detergents, and drain cleaner .Bleaching, disinfection and water treatment agents.Salts produced by bacteria that are damaging to humans and ecosystems.Used to “cure” meats.

Structural material in bones and teeth.Battery acid, soap, shampoo, toothpaste, acid rain.Wine and food preservatives.

Covalent Compounds

Are between 2 non-metals.

Rules: Name the first non-metal (most positive) Then the second non-metal + “ide” Use pre-fixes If there is no prefix use prefix of 1

Covalent Compounds

Pre-fixes 1- mono 2- di 3- tri 4- tetra 5- penta 6- hexa 7- hepta 8- octa 9- nona 10- deca

Covalent Compounds

Example 1: CO2

Example 2: PO5

Match Formulas With Name

_____Carbon Dioxide _____Carbon Monoxide _____Sulfur Trifluoride _____Nitrogen Tribromide _____Nitrogen Monofluoride

NF CO2

SF3

CO NBr3

Write the Formulas

1) phosphorus dibromide _______________ 2) hexaboron silicide ____________________ 3) chlorine dioxide _______________________ 4) Nitrogen triiodide _____________________ 5) hydrogen iodide ______________________ 6) Diboron trisulfide ____________________ 7) iodine pentafluoride

_____________________ 8) dinitrogen tetraoxide

____________________

Write the name of the compound 9) P4S5__________________________________ 10) O2 __________________________________ 11) SeF6 __________________________________ 12) Si2Br6 __________________________________ 13) SCl4 __________________________________ 14) CH4 __________________________________ 15) B2Si __________________________________ 16) NF3 __________________________________

Exit Slip

1. An ionic compound consists of a ______element and a ______element

2. What is the name for LiBr?3. What is the name for HgCl2?4. Which of the following is the correct name

for the compound MnF3?a. Manganese fluoride (III)b. Manganese (III) fluoridec. Manganese (I) fluoride (III)d. Manganese (III) fluoride (III)