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UNIT 3 REVIEW. Elements. If the formula has ONE CAPITAL LETTER, it is an element, and its name is what is found on the periodic table (regardless of subscript). IONS. Positive ions are named for the element Na+ is the ‘sodium ion’ Negative ions end in ‘-ide’ Cl - is the “chloride ion”

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Unit 3 review

UNIT 3 REVIEW


Elements
Elements

If the formula has ONE CAPITAL LETTER, it is an element, and its name is what is found on the periodic table (regardless of subscript)


IONS

Positive ions are named for the element

Na+ is the ‘sodium ion’

Negative ions end in ‘-ide’

Cl- is the “chloride ion”

Check table E for polyatomic ions (like NO3-)


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

NF3 nitrogen trifluoride

CaCl2 calcium chloride


  • MOLECULAR COMPOUNDS –IDE, whether molecular or ionic:

    - start with a NON-METAL

    - use PREFIXES in the name

    P2O5

    diphosphorus pentoxide


  • IONIC COMPOUNDS: –IDE, whether molecular or ionic

    - start with a METAL

    - NO prefixes in name

    - if given name write SYMBOL and CHARGE above names to find formula


KF potassium fluoride –IDE, whether molecular or ionic

Mg2+ P3-

magnesium phosphide

Mg3P2



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

KNO3 potassium nitrate

Na2SO4 sodium sulfate




SeF NUMERALS in the name:2



B NUMERALS in the name:4C


tetraboron monocarbide NUMERALS in the name:


MgI NUMERALS in the name:2



Ag NUMERALS in the name:2S



AlBr NUMERALS in the name:3



sodium oxide NUMERALS in the name:


Na NUMERALS in the name:2O


lithium phosphide NUMERALS in the name:


Li NUMERALS in the name:3P


O NUMERALS in the name:2


oxygen NUMERALS in the name:


beryllium arsenide NUMERALS in the name:


Be NUMERALS in the name:3As2


iron(II) sulfide NUMERALS in the name:


FeS NUMERALS in the name:


chromium (III) fluoride NUMERALS in the name:


CrF NUMERALS in the name:3


lead (IV) hydride NUMERALS in the name:


PbH NUMERALS in the name:4


NiN NUMERALS in the name:


nickel (III) nitride NUMERALS in the name:


MnO NUMERALS in the name:2


manganese (IV) oxide NUMERALS in the name:


TiCl NUMERALS in the name:3


titanium (III) chloride NUMERALS in the name:


LiNO NUMERALS in the name:3


LiNO NUMERALS in the name:3


Oxide ion NUMERALS in the name:


O NUMERALS in the name:2-


NH NUMERALS in the name:4F


ammonium fluoride NUMERALS in the name:


MgCO NUMERALS in the name:3


magnesium carbonate NUMERALS in the name:


calcium chlorate NUMERALS in the name:


calcium ion NUMERALS in the name:


Ca NUMERALS in the name:2+


Ca(ClO NUMERALS in the name:3)2


lithium phosphate NUMERALS in the name:


Li NUMERALS in the name:3PO4


aluminum nitrate NUMERALS in the name:


Al(NO NUMERALS in the name:3)3


Pb(NO NUMERALS in the name:3)2


lead(II) nitrate NUMERALS in the name:


nitrogen triiodide NUMERALS in the name:


NI NUMERALS in the name:3


sodium sulfide NUMERALS in the name:


Na NUMERALS in the name:2S


K NUMERALS in the name:3PO4


potassium phosphate NUMERALS in the name:


SrSO NUMERALS in the name:4


strontium sulfate NUMERALS in the name:


carbon tetrachloride NUMERALS in the name:


CCl NUMERALS in the name:4


barium hydroxide NUMERALS in the name:


Ba(OH) NUMERALS in the name:2


BBr NUMERALS in the name:3


boron tribromide NUMERALS in the name:


nickel (III) carbonate NUMERALS in the name:


Ni NUMERALS in the name:2(CO3)3


zinc oxide NUMERALS in the name:


ZnO NUMERALS in the name:


RbH NUMERALS in the name:


rubidium hydride NUMERALS in the name:


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