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Naming Ionic

Compounds

Naming Binary Ionic

Compounds

Metal + Non-metal A Binary Ionic Compound



Name: Metal

Name: Metal Non-metal

Name: Metal Non-metal (ending in “ide”)

What is the name of the compound Rb2S ?


rubidium


rubidium sulfur


rubidium sulfide


rubidium sulfide


monovalent

rubidium sulfide


monovalent

rubidium sulfide

rubidium sulfide


What is the name of the compound Mg3N2 ?


magnesium nitrogen

rubidium sulfide


magnesium nitrogen

rubidium sulfide


magnesium nitride

rubidium sulfide


magnesium nitride

rubidium sulfide


monovalent

magnesium nitride

rubidium sulfide


monovalent

magnesium nitride

rubidium sulfide


monovalentWe don’t need to worry

about the subscripts

3 and 2

We don’t need to worry

about the subscripts

3 and 2

magnesium nitride

magnesium nitride


Naming Compounds

with Multivalent

Metals

Multivalent Metals are metals with more than one possible charge:

Multivalent Metals are metals with more than one possible charge: Examples:

Multivalent Metals are metals with more than one possible charge: Examples:

When a compound contains a multivalent metal,

When a compound contains a multivalent metal, we must specify which charge the metal has, using a Roman numeral.

What is the name of the compound Cr2O3?


Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–

Total positive charge: +6 Total negative charge: –6

Charge on single ion: +3

Name chromium(III) oxide


Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–




multivalent


Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–




multivalent

?


Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–




multivalent

Spac

e fo

r

Rom

an n

umer

al


Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–




?

?


Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–





Elements

Ions

Cr3+

Cr3+

O2–

O2–

O2–



Name chromium(III) oxide Name

Naming Ionic Compounds

with Polyatomic

Ions

Any ionic compound with more than 2 elements can be assumed to contain one or more polyatomic ions.

Any ionic compound with more than 2 elements can be assumed to contain one or more polyatomic ions.You can tell how many elements a compound has by counting the number of capital letters in the formula.

Any ionic compound with more than 2 elements can be assumed to contain one or more polyatomic ions.You can tell how many elements a compound has by counting the number of capital letters in the formula.For example: CuSO4 has 3 capital letters, so it has 3 elements.

Any ionic compound with more than 2 elements can be assumed to contain one or more polyatomic ions.You can tell how many elements a compound has by counting the number of capital letters in the formula.For example: CuSO4 has 3 capital letters, so it has 3 elements.Because CuSO4 has more than 2 elements,It must contain a polyatomic ion.

Once we know that a compound contains one or more polyatomic ions, we just locate that ion, or those ions, on the ion table.

The name of a polyatomic ion is NOT CHANGED when it is added to the name of a compound.

For example:

For example:NaClO is named sodium hypochlorite

For example:NaClO is named sodium hypochloriteKNO3 is named potassium nitrate

For example:NaClO is named sodium hypochloriteKNO3 is named potassium nitrateLiMnO4 is named lithium permanganate

What is the name of the compound Ba(ClO4)2 ?



Monovalent


Don’t

worry

about

this 2

Monovalent

bariumperchlorat

e


No Roman

numeral

bariumperchlorat

e


No change

No Roman

numeral

bariumperchlorat

e

barium perchlorate


Name

What is the name of the compound NH4HSO3 ?


Contains 2 polyatomi

c ions


ammonium

hydrogen sulfiteor bisulfite


ammonium

hydrogen sulfiteor bisulfite

ammonium hydrogen sulfite or ammonium bisulfite


Name

What is the name of the compound Sn(CO3)2?


Elements or Polyatomic ions

Ions

Cr3+

Cr3+

O2–

O2–

O2–




3 capital letters



Ions

Cr3+

Cr3+

O2–

O2–

O2–



Name



Ions

Cr3+

Cr3+

O2–

O2–

O2–



Name

Multivalent



Ions

Cr3+

Cr3+

O2–

O2–

O2–



Name tin(IV) carbonate

Multivalent



Ions

Sn4+

CO32–

CO32–




The Formula



Ions

Sn4+

CO32–

CO32–




The Formula



Ions

Sn4+

CO32–

CO32–






Ions

Sn4+

CO32–

CO32–






Ions

Sn4+

CO32–

CO32–






Ions

Sn4+

CO32–

CO32–






Ions

Sn4+

CO32–

CO32–




Charge on 1 Sn ion



Ions

Sn4+

CO32–

CO32–




Charge on 1 Sn ion



Ions

Sn4+

CO32–

CO32–






Ions

Sn4+

CO32–

CO32–






Ions

Sn4+

CO32–

CO32–



Name tin(IV) carbonate Name