UNIT 3UNIT 3

REVIEW REVIEW

all TWO element compounds all TWO element compounds (two capital letters) end in –(two capital letters) end in –IDE, whether molecular or IDE, whether molecular or ionicionic

NFNF33 nitrogen trifluor nitrogen trifluorideide

CaClCaCl22 calcium chlor calcium chlorideide

MOLECULAR COMPOUNDSMOLECULAR COMPOUNDS:: - start with a - start with a NON-METALNON-METAL - use - use PREFIXESPREFIXES in the name in the name

PP22OO5 5

didiphosphorus phosphorus pentpentoxideoxide

IONIC COMPOUNDS:IONIC COMPOUNDS: - start with a - start with a METALMETAL - - NONO prefixes in name prefixes in name - if given name write SYMBOL - if given name write SYMBOL

and CHARGE above names to and CHARGE above names to find formulafind formula

KF potassium fluorideKF potassium fluoride

MgMg2+ 2+ PP3-3-

magnesium phosphidemagnesium phosphide

MgMg33PP22

If the metal can have more If the metal can have more than one charge, use than one charge, use ROMAN NUMERALS in the ROMAN NUMERALS in the name:name:

CuCu2+2+ Cl Cl--

copper (II) chloride copper (II) chloride CuClCuCl22

if non-metal is if non-metal is POLYATOMIC IONPOLYATOMIC ION, , compound ends in compound ends in –ITE–ITE or or –ATE–ATE::

KNOKNO33 potassium nitr potassium nitrateate

NaNa22SOSO4 4 sodium sulf sodium sulfateate

CO2, O2-, F2, Na2SO4, PO43-, Na+,

C, KOH, Al3+ , P4, NO2-, Si, N2O5,

Fe2O3, Br-

Which are…Which are…Atoms?Atoms?Molecules ?Molecules ?Ions?Ions?Ionic compounds: Ionic compounds: Elements: Elements:

C Si

P4

CO2 F2 P4O2- PO4

3- Na+ Al3+ NO2- Br-

Fe2O3 Na2SO4 KOH

C Si

N2O5

F2

write formula and then name for:write formula and then name for:

NN22OO44

dinitrogen tetroxidedinitrogen tetroxide

SeFSeF22

selenium difluorideselenium difluoride

BB44CC

tetraboron tetraboron monocarbidemonocarbide

MgIMgI22

magnesium iodidemagnesium iodide

AgAg22SS

silver sulfidesilver sulfide

AlBrAlBr33

aluminum bromidealuminum bromide

sodium oxidesodium oxide

NaNa22OO

lithium phosphidelithium phosphide

LiLi33PP

LiNOLiNO33

lithium nitratelithium nitrate

beryllium arsenideberyllium arsenide

BeBe33AsAs22

iron(II) sulfideiron(II) sulfide

FeSFeS

chromium (III) chromium (III) fluoridefluoride

CrF3CrF3

lead (IV) hydridelead (IV) hydride

PbHPbH44

barium hydroxidebarium hydroxide

Ba(OH)Ba(OH)22

NiNNiN

nickel (III) nitridenickel (III) nitride

MnOMnO22

manganese (IV) manganese (IV) oxideoxide

KK33POPO44

potassium phosphatepotassium phosphate

TiClTiCl33

titanium (III) chloridetitanium (III) chloride

NHNH44FF

ammonium fluorideammonium fluoride

MgCOMgCO33

magnesium magnesium carbonatecarbonate

calcium chloratecalcium chlorate

Ca(ClOCa(ClO33))22

lithium phosphatelithium phosphate

LiLi33POPO44

aluminum nitratealuminum nitrate

Al(NOAl(NO33))33

Pb(NOPb(NO33))22

lead(II) nitratelead(II) nitrate

nitrogen triiodidenitrogen triiodide

NINI33

sodium sulfidesodium sulfide

NaNa22SS

SrSOSrSO44

strontium sulfatestrontium sulfate

carbon tetrachloridecarbon tetrachloride

CClCCl44

BBrBBr33

boron tribromideboron tribromide

nickel (III) carbonatenickel (III) carbonate

NiNi22(CO(CO33))33

zinc oxidezinc oxide

ZnOZnO

RbHRbH

rubidium hydriderubidium hydride