AP Chemistry Ion Sheet Chemical Nomenclature

AP Chemistry Ion Sheet Chemical Nomenclature

The AP Chemistry Ion Sheet focuses on chemical nomenclature, providing essential information for students preparing for the AP Chemistry exam. It includes detailed lists of monatomic and polyatomic ions, their charges, and naming conventions. This resource is crucial for mastering the nomenclature of acids, bases, and salts. It serves as a comprehensive guide for high school chemistry students and educators alike, facilitating a deeper understanding of ionic compounds and their naming rules. The sheet also covers binary acids and ternary acids, offering clear examples and naming rules for each category.

Key Points

  • Includes comprehensive lists of monatomic and polyatomic ions with charges.
  • Explains naming conventions for binary and ternary acids in detail.
  • Provides examples of common acids and their corresponding anions.
  • Covers IUPAC naming rules for both ionic and molecular compounds.
  • Serves as a study aid for AP Chemistry students preparing for exams.
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AP Chemistry Ion Sheet -- Chemical Nomenclature
You have a choice: (a) You can memorize this list. (b) You can memorize some acid formulas and names
and use them to predict the names and formulas of the polyatomic anions. In the following list: (a) The first name
given is the IUPAC or Stock System name. (b) The second name is a traditional name.
I. Monatomic Anions (-ide suffix):
==========================================
hydride H
-1
fluoride F
-1
chloride Cl
-1
bromide Br
-1
iodide I
-1
astatide At
-1
---------------------------------------------------------------
oxide O
-2
sulfide S
-2
sellenide Se
-2
telluride Te
-2
---------------------------------------------------------------
nitride N
-3
phosphide P
-3
arsenide As
-3
---------------------------------------------------------------
carbide C
-4
silicide Si
-4
=========================================
II. Polyatomic Anions (-ite/-ate suffix)
=========================================
polyatomic anions with hydrogen:
-------------------------------------------------------------
hydrogen carbonate/bicarbonate HCO
3
-1
hydrogen sulfate/bisulfate HSO
4
-1
hydrogen sulfite/bisulfite HSO
3
-1
monohydrogen phosphate HPO
4
-2
dihydrogen phosphate H
2
PO
4
-1
hydrogen oxalate/binoxalate HC
2
O
4
-1
hydrogen phthalate/biphthalate HC
8
H
4
O
4
-1
---------------------------------------------------------------
polyatomic anions with sulfur:
---------------------------------------------------------------
thiocyanate SCN
-1
thiosulfate S
2
O
3
-2
--------------------------------------------------------------
monovalent polyatomic anions:
--------------------------------------------------------------
nitrate NO
3
-1
nitrite NO
2
-1
---------------------------------------------------------------
perchlorate ClO
4
-1
chlorate ClO
3
-1
chlorite ClO
2
-1
hypochlorite ClO
-1
---------------------------------------------------------------
perbromate BrO
4
-1
bromate BrO
3
-1
bromite BrO
2
-1
hypobromite BrO-1
---------------------------------------------------------------
periodate IO
4
-1
iodate IO
3
-1
iodite IO
2
-1
hypoiodite IO
-1
---------------------------------------------------------------
permanganate MnO
4
-1
manganate MnO
3
-1
---------------------------------------------------------------
cyanate OCN
-1
acetate C
2
H
3
O
2
-1
hydroxide OH
-1
cyanide CN
-1
---------------------------------------------------------------
divalent polyatomic anions:
---------------------------------------------------------------
sulfate SO
4
-2
sulfite SO
3
-2
---------------------------------------------------------------
chromate CrO
4
-2
chromite CrO
3
-2
dichromate Cr
2
O
7
-2
---------------------------------------------------------------
carbonate CO
3
-2
oxalate C
2
O
4
-2
phthalate C
8
H
4
O
4
-2
peroxide O
2
-2
---------------------------------------------------------------
tri- and tetravalent polyatomic anions:
---------------------------------------------------------------
perborate BO
4
-3
borate BO
3
-3
---------------------------------------------------------------
phosphate PO
4
-3
phosphite PO
3
-3
---------------------------------------------------------------
arsenate AsO
4
-3
arsenite AsO
3
-3
---------------------------------------------------------------
silicate SiO
4
-4
AP Chemistry Ion Sheet -- Chemical Nomenclature
You have a choice: (a) You can memorize this list. (b) You can learn to use the periodic chart to predict the
positive charges of the metal and metalloid cations. In the following list: (a) The first name given is the IUPAC or
Stock System name. (b) The second name is a traditional name.
I. Monatomic Cations
==========================================
monovalent cations: (Table 8-1and 8-2)
---------------------------------------------------------------
hydrogen H
+1
lithium Li
+1
sodium Na
+1
potassium K
+1
rubidium Rb
+1
cesium Cs
+1
francium Fr
+1
---------------------------------------------------------------
ammonium NH
4
+1
silver Ag
+1
copper (I) or cuprous Cu
+1
gold (I) or aurous Au
+1
mercury (I) or mercurous (Hg
+1
) in Hg
2
+2
---------------------------------------------------------------
divalent cations: (Table 8-1 and 8-2)
---------------------------------------------------------------
beryllium Be
+2
magnesium Mg
+2
calcium Ca
+2
strontium Sr
+2
barium Ba
+2
radium Ra
+2
---------------------------------------------------------------
zinc Zn
+2
cadmium Cd
+2
copper (II) or cupric Cu
+2
mercury (II) or mercuric Hg
+2
chromium (II) or chromous Cr
+2
manganese (II) or manganous Mn
+2
iron (II) or ferrous Fe
+2
cobalt (II) or cobaltous Co
+2
nickel (II) or nickelous Ni
+2
tin (II) or stannous Sn
+2
lead (II) or plumbous Pb
+2
---------------------------------------------------------------
trivalent cations (Table 8-1 and 8-2)
---------------------------------------------------------------
aluminum Al
+3
gold (III) or auric Au
+3
chromium (III) or chromic Cr
+3
manganese (III) or manganic Mn
+3
iron (III) or ferric Fe
+3
cobalt (III) or cobaltic Co
+3
nickel (III) or nickelic Ni
+3
cerium (III) or cerous Ce
+3
arsenic (III) or arsenous As
+3
antimony (III) or antimonous Sb
+3
bismuth (III) or bismuthous Bi
+3
---------------------------------------------------------------
tetra- & pentavalent cations (Table 8-2)
---------------------------------------------------------------
tin (IV) or stannic Sn
+4
lead (IV) or plumbic Pb
+4
cerium (IV) or ceric Ce
+4
arsenic (V) or arsenic As
+5
antimony (V) or antimonic Sb
+5
bismuth (V) or bismuthic Bi
+5
==========================================
Handout Table 8-2: Positive Ions Whose Charges Vary
Traditional Name
IUPAC Name root -ous ending -ic ending
copper (I) and (II) cupr- Cu+1 Cu+2
gold (I) and (III) aur- Au+1 Au+3
mercury (I) and (II) mercur- Hg2+2 Hg+2
chromium (II) and (III) chrom- Cr+2 Cr+3
manganese (II) and (III) mangan- Mn+2 Mn+3
iron (II) and (III) ferr- Fe+2 Fe+3
cobalt (II) and (III) cobalt- Co+2 Co+3
nickel (II) and (III) nickel- Ni+2 Ni+3
tine (II) and (IV) stann- Sn+2 Sn+4
lead (II) and (IV) plumb- Pb+2 Pb+4
cerium (III) and (IV) cer- Ce+3 Ce+4
arsenic (III) and (V) arsen- As+3 As+5
antimony (III) and (V) antimon- Sb+3 Sb+5
bismuth (III) and (V) bismuth- Bi+3 Bi+5
AP Chemistry -- Acids and the Nomenclature of Ions
I. Binary Acids and Monatomic Anions:
Binary Acids are those molecular compounds beginning with hydrogen and ending with another nonmetal or
possibly a metalloid. Note that HCN, hydrocyanic acid is also included in this group. To make the acids into
monatomic anions, remove the hydrogens -- one at a time. Each hydrogen removed leaves the anion with a -1
charge.
Binary Acid Naming Rule = hydro prefix - root of 2nd element -ic suffix acid
Anion Naming Rule = drop the prefix and the word acid, change the suffix to -ide
acid formulaacid name ion formula ion name
Examples: HF hydrofluoric acid F
-1
fluoride
HCl hydrochloric acid Cl
-1
chloride
HBr hydrobromic acid Br
-1
bromide
HI hydroiodic acid I
-1
iodide
HCN hydrocyanic acid CN
-1
cyanide
H
2
S hydrosulfuric acid HS
-1
hydrogen sulfide or bisulfide
S
-2
sulfide
HN
3
hydrazoic acid N
3
-1
azide
II. Ternary Acids or Oxy-Acids:
Ternary acids contain three of more elements. They start with hydrogen, end with oxygen, and have another
nonmetal or metalloid in between. To make the acids into polyatomic anions, remove the hydrogens -- one at a time.
Each hydrogen removed leaves the anion with a -1 charge. Each ternary acid belongs to a family of potentially four
members. One member of the family is designated the "parent acid." You must memorize the names and formulas
of the common parent acids.
Ternary Acid Family Naming Rules:
HIO
4 (add an oxygen to parent) add per- prefix to parent name: periodic acid
** HIO
3
parent acid ** iodic acid
HIO
2 (remove one oxygen) change suffix to -ous: iodous acid
HIO (remove a second oxygen) add hypo- prefix to -ous name: hypoiodous acid
Anion Naming Rule = drop the word acid
change -ic suffix to -ate
change -ous suffix to -ite
acid formulaacid name ion formulaion name
Examples: HIO
4
periodic acid IO
4
-1
periodate
HIO
3
iodic acid IO
3
-1
iodate
HIO
2
iodous acid IO
2
-1
iodite
HIO hypoiodous acid IO-
1
hypoiodite
(H
3
AsO
4
= arsenic acid H
2
AsO
4
-1
= dihydrogen arsenate HAsO
4
-2
= monohydrogen arsenate)
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FAQs of AP Chemistry Ion Sheet Chemical Nomenclature

What are monatomic anions and how are they named?
Monatomic anions are negatively charged ions formed from single atoms, such as fluoride (F-1) and chloride (Cl-1). They typically end with the suffix '-ide.' The naming convention involves using the root of the element's name followed by the '-ide' suffix. For example, the anion derived from sulfur is called sulfide (S-2). Understanding these naming conventions is essential for students learning chemical nomenclature.
How do you name ternary acids according to the AP Chemistry Ion Sheet?
Ternary acids, or oxyacids, contain hydrogen, oxygen, and another element. The naming convention involves identifying the parent acid and its corresponding anion. If the anion ends in '-ate,' the acid name will end in '-ic,' while if it ends in '-ite,' the acid name will end in '-ous.' For example, HNO3 is named nitric acid, while HNO2 is named nitrous acid. This systematic approach helps students accurately name and understand the properties of these acids.
What is the significance of the AP Chemistry Ion Sheet for students?
The AP Chemistry Ion Sheet is a vital resource for students preparing for the AP Chemistry exam, as it consolidates essential information on chemical nomenclature. It aids in mastering the naming and formulas of various ions, which is crucial for understanding chemical reactions and compounds. By providing clear examples and systematic naming rules, the sheet enhances students' confidence and proficiency in chemistry. It serves as a quick reference guide during study sessions and exams.
What are the rules for naming binary acids?
Binary acids are composed of hydrogen and one other nonmetal element. The naming convention for binary acids involves using the prefix 'hydro,' followed by the root of the second element's name, and ending with the '-ic' suffix, followed by the word 'acid.' For example, HCl is named hydrochloric acid. This systematic approach helps students remember how to name these acids correctly, which is essential for their chemistry studies.
What types of ions are included in the AP Chemistry Ion Sheet?
The AP Chemistry Ion Sheet includes both monatomic and polyatomic ions. Monatomic ions consist of single atoms with a specific charge, such as sodium (Na+1) and chloride (Cl-1). Polyatomic ions, on the other hand, are ions composed of two or more atoms, such as sulfate (SO4-2) and nitrate (NO3-1). Understanding these ions and their charges is crucial for students as they learn to balance chemical equations and understand ionic compounds.

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