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Naming Inorganic Compounds. Positive ions (cations) Cations formed from metal atoms have the same name as the metal. Na + sodium ion Zn 2+ zinc ion. Naming Inorganic Compounds. Positive ions (cations) If the metal can form ions with more than one charge, the charge is in ( ).

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Naming Inorganic Compounds

Positive ions (cations)

Cations formed from metal atoms have the same name as the metal.

Na+ sodium ion Zn2+ zinc ion


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Naming Inorganic Compounds

Positive ions (cations)

If the metal can form ions with more than one charge, the charge is in ( ).

Co+ cobalt() Co2+ cobalt()


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Naming Inorganic Compounds

metal names

Lower charge gets the ous Higher charge gets the ic

Fe2+ = Fe(II) = Ferrous FeCl2 = ferrous chloride

Fe3+ = Fe(III) = Ferric FeCl3 = ferric chloride

Cu+ = Cu(I) = cuprous CuBr = cuprous bromide

Cu2+ = Cu(II) = cupric CuBr2 = cupric bromide

Hg+ = Hg(I) = Mercurous HgI = mercurous iodide

Hg2+ = Hg(II) = Mercuric HgI2 = mercuric iodide


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Naming Inorganic Compounds

Positive ions (cations)

Follow the poly atomic ion list for others


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Naming Inorganic Compounds

Negative ions (anions)

Monotomic anions – drop the ending of the name and add –ide.

H- hydride O2- oxide Br- bromide

Follow the polyatomic ion list for others.


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Naming Inorganic Compounds

Ionic compounds

Name the cation followed by the anion

CaCl2 calcium chloride

Al2O3 aluminum oxide


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Naming Inorganic Compounds

Binary molecular compounds

(covalent compounds)

  • The name of the element farthest to the left in the table is written first.

  • If in the same group, the lower one is named first

  • The second element is given the ide ending

  • Greek prefixes are used to indicate the number of each atom.


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Standard prefixes

1 mono 6 hexa

2 Di 7 hepta

3 tri 8 octa

4 tetra 9 nona

5 penta 10 deca


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Naming Inorganic Compounds

Naming Acids

If the acid has no oxygen then simply add hydro as prefix and ic acid as suffix


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Naming Inorganic Compounds

Naming Acids

If the acid contains oxygen

use ic acid if the anion ends in ate

and

use ous acid if the anion ends in ite.


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Naming Inorganic Compounds

Naming Acids

If the acid contains oxygen

If the acid has one less O than the ite ion then uses hypo….ousacid

If it has one more O than the ate ion then use per….ic acid.


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Naming Inorganic Compounds

Naming Acids

ClO- hypochlorite ion HClO hypochlorous acid

ClO2- chlorite ion HClO2 chlorous acid

ClO3- chlorate ion HClO3 chloric acid

ClO4- Perchlorate ion HClO4 perchloroic acid


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