Can you finish Can you finish secret agent secret agent beakers task to beakers task to save your save your planet?planet?

There are rules for There are rules for naming!!naming!!

When Metals combine with non When Metals combine with non metalsmetals– Metal loose one or more electron Metal loose one or more electron

(becomes cation Ex: Mg2(becomes cation Ex: Mg2+)+)

– Non metal gains one or more electronsNon metal gains one or more electrons(becomes anion Cl(becomes anion Cl--))

These are called binary compoundsThese are called binary compounds Cations are always named firstCations are always named first Anions are always secondAnions are always second Have an ide ending Have an ide ending Ex” NaCl Sodium ChlorideEx” NaCl Sodium Chloride

When naming Ionic compounds When naming Ionic compounds with Transition metalswith Transition metals

When metals form more than one ion When metals form more than one ion there are different rules(Transition there are different rules(Transition Metals)Metals)

Ex Pb forms Pb Ex Pb forms Pb 2+2+ and Pb and Pb 4+4+

We must distinguish what type of Lead We must distinguish what type of Lead we are talking aboutwe are talking about

Scientists use a roman numeral to Scientists use a roman numeral to distinguish what type of a metal is distinguish what type of a metal is being usedbeing used

How do you know the type of How do you know the type of Lead being used?Lead being used?

You must examine how the ions You must examine how the ions combined combined

All Compounds are neutral so in PbOAll Compounds are neutral so in PbO2 2

the Pb ions must balance the Othe Pb ions must balance the O2-2- ions. ions. It must be Pb(IV) because there are 2 It must be Pb(IV) because there are 2

O ions (from 2 subscript).O ions (from 2 subscript). Thus PbOThus PbO22 is called Lead(IV)Oxide is called Lead(IV)Oxide

Name the followingName the following

PbBrPbBr22

PbBrPbBr44

LiClLiCl MgOMgO

Lead(II)BromideLead(II)BromideLead(IV)BromideLead(IV)BromideLithium ChlorideLithium ChlorideMagnesium OxideMagnesium Oxide

What about those crazy What about those crazy Polyatomic Ions?Polyatomic Ions?

Polyatomic ions are ions that are Polyatomic ions are ions that are composed of more than one elementcomposed of more than one element

Together they contain a chargeTogether they contain a charge Ex- OHEx- OH--= Hydroxide has a charge of -1= Hydroxide has a charge of -1 NHNH44

++ = Ammonium has a charge of +1 = Ammonium has a charge of +1

SOSO442-2-= Sulfate and has a charge of -2= Sulfate and has a charge of -2

There are rules for naming these as There are rules for naming these as wellwell

YOU MUST LEARN TO RECOGNIZE YOU MUST LEARN TO RECOGNIZE POLYATOMIC IONSPOLYATOMIC IONS

Similar to rules for naming binary ionic Similar to rules for naming binary ionic compoundscompounds

Cation first then anion, but no ideCation first then anion, but no ide Ex: NaOH= Sodium HydroxideEx: NaOH= Sodium Hydroxide Must distinguish what type of metal it Must distinguish what type of metal it

containscontains Ex Fe(NOEx Fe(NO33))3 = 3 = Iron(III)NitrateIron(III)Nitrate When writing polyatomics you must put When writing polyatomics you must put

use parenthesis to determine HOW MANY use parenthesis to determine HOW MANY of each poly atomic.of each poly atomic.

Name the followingName the following Cu(NOCu(NO33))22, PbCO, PbCO33, NH, NH44I NaCNI NaCN Copper(II) Nitrate, Lead(II) Copper(II) Nitrate, Lead(II)

Carbonate, Ammonium Iodide, Carbonate, Ammonium Iodide, Sodium CyanideSodium Cyanide

Compounds that contain non Compounds that contain non metals(molecules)metals(molecules)

There are different rules when a There are different rules when a compounds contains only nonmetalscompounds contains only nonmetals

Ex: B,C,N,O,F,Ex: B,C,N,O,F, The first element in the formula is named The first element in the formula is named

first,and the full element name is usedfirst,and the full element name is used The second element is named as though it The second element is named as though it

were an anionwere an anion Prefixes are used to tell the number of Prefixes are used to tell the number of

atoms presentatoms present

Prefixes arePrefixes are Mono-1Mono-1 Di-2Di-2 Tri-3Tri-3 Tetra-4Tetra-4 Penta-5Penta-5 Hexa-6Hexa-6 Hepta-7Hepta-7 Octa- 8Octa- 8 Note, mono is not used when describing the Note, mono is not used when describing the

first atomfirst atom

Ex:Ex: COCO22

Name is Carbon dioxideName is Carbon dioxide NN33OO55

Name is trinitrogen pentoxideName is trinitrogen pentoxide PClPCl33

Name is Phosphorous trichlorideName is Phosphorous trichloride

Try TheseTry These II22OO77, CF, CF44,IF,IF55

Diiodine heptoxide, Carbon Diiodine heptoxide, Carbon tetrafluoride, Iodine pentafluoridetetrafluoride, Iodine pentafluoride

Name the followingName the following– BFBF33, NaCl, CCl, NaCl, CCl44, FeS, AlBr, FeS, AlBr33,N,N22OO5, 5, CuCl CuCl

NaNa22SOSO44, KI, KI

Boron trifluoride, Sodium Chloride, Carbon tetrachloride, Iron(II) Sulfide, Boron trifluoride, Sodium Chloride, Carbon tetrachloride, Iron(II) Sulfide,

Aluminum bromide dinitrogen pentoxide,, Copper(I)Chloride, Sodium Sulfate, Aluminum bromide dinitrogen pentoxide,, Copper(I)Chloride, Sodium Sulfate,

Potassium IodidePotassium Iodide