Naming Ionic Compounds

Ionic compounds contain a _____ + a non______

metal + nonmetal

How to name ionic compounds with invariant metal

How to name ionic compounds with variant metal

How to deduce formula of a cation and anion

find the lowest whole-number ratio which gives the compound a neutral charge

monoatomic vs polyatomic anion

mono = 1 element, poly = multiple elements

most polyatomic anions are ____anions

oxyanions (oxygen + another element)

How to name oxyanions

based on the number of oxygen atoms or the charge of the M/NM on left side of the ion

Invariant elements

Invariant metals

Monoatomic anions

Invariant

One predictable charge

Variant

Charge can vary

Name molecular compounds (NM+NM)

The first element is the more metal-like; smallest group number, then greatest row number.

Common Variant Metal Charges

molecular compound prefixes

Mono=1

Di=2

Tri=3

Tetra=4

Penta=5

Hexa=6

Hepta=7

Octa=8

Nona=9

Deca=10

FeCl₃

iron(III) chloride

FeCl₂

iron(II) chloride

Cr₂O₃

chromium(III) oxide

Cu₃N₂

copper(II) nitride

PbCl₄

lead(IV) chloride

FeS

iron(II) sulfide

RuO₂

Ruthenium(IV) oxide

Ag¹⁺ and N^3-

Ag₃N

Rb₂S

Rubidium sulfide

KF

Potassium Fluoride

MgF₂

Magnesium Fluoride

Al₂S₃

Aluminum Sulfide

ClO^-

Hypochlorite

ClO^2-

chlorite

ClO^3-

chlorate

ClO^4-

perchlorate

CO₃^2-

carbonate

Cr Charge

2+, 3+

Fe charge

2+, 3+

Co charge

2+, 3+

Cu charge

1+, 2+

Sn charge

2+, 4+

Hg charge

(Hg₂)²⁺ (I) and Hg²⁺ (II)

Pb charge

2+, 4+

Li charge

1+

Na charge

1+

K charge

1+

Rb charge

1+

Cs charge

1+

Sc charge

3+

Ag charge

1+

Zn charge

2+

Al charge

3+

N charge

3-

O charge

2-

S charge

2-

Se charge

2-

Te charge

2-

F charge

1-

Cl charge

1-

Br charge

1-

I charge

1-

P charge

3-

Polyatomic anions

NaMnO₄

Sodium Permanganate

FeSO₄

iron(II) sulfate

Sn(ClO₃)₂

tin(II) perchlorate

Co₃(PO₄)₂

Cobalt(II) Phosphate

the mono prefix is removed before the 1st NM (molecular compounds)
True / False

True

NO₂

nitrogen dioxide

N₂O

dinitrogen monoxide

NI₃

nitrogen triiodide

PCl₅

phosphorus pentachloride

P₄S₁₀

tetraphosphorus decasulfide

N₂O₅

dinitrogen pentaoxide

PBr₃

Phosphorus tribromide