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WorksheetsIons and Their Charges: Basic Definitions
Total questions: 45
Worksheet time: 23mins
Which statement best defines an ion?
A neutral atom with balanced electrons
An atom or molecule with net charge
A particle with only protons and neutrons
A molecule that cannot gain electrons
What is a polyatomic ion?
An ion containing more than one atom
A molecule with multiple ionic bonds
A compound formed by covalent bonds
A single atom with neutral charge
Select the correct formula and charge for the ammonium ion.
NH2 with a +2 charge
NH3 with a −1 charge
NH4 with a 0 charge
NH4 with a +1 charge
Which formula corresponds to the acetate ion?
CH3CO with a +1 charge
CO3 with a −2 charge
C2H3O2 with a −1 charge
C2H4O2 with a 0 charge
Group 1A elements typically have which oxidation state in ionic compounds?
+2 oxidation state
+1 oxidation state
0 oxidation state
−1 oxidation state
A transition metal named with Roman numeral (I) indicates what charge?
A +1 charge on the metal
A −1 charge on the metal
A +2 charge on the metal
A variable charge not specified
Which set correctly matches ion names to formulas?
Bromate: BrO4−2; Chlorate: ClO2−1
Bromate: BrO3−2; Chlorate: ClO3−2
Bromate: BrO3−1; Chlorate: ClO3−1
Bromate: BrO2−1; Chlorate: ClO4−1
Hydronium is represented by which formula and charge?
H2O with a +1 charge
H3O with a +1 charge
H2O with a −1 charge
H3O with a −1 charge
Group 2A elements commonly form ions with what charge?
+2 charge
−2 charge
+1 charge
−1 charge
Halogens (Group 7A) most often have which oxidation state in ionic compounds?
+2 oxidation state
+1 oxidation state
−1 oxidation state
0 oxidation state
Which formula represents the cyanide ion?
HCN−1
ClO2−1
CN−1
CO2−1
Chlorite is a polyatomic ion. Which formula is correct for chlorite?
ClO3−1
ClO2−1
ClO−1
ClO4−1
Which ion has the formula H−1?
Hydronium
Hydrogen radical
Hydride
Hydrogen
What is the correct formula for the hydrogen carbonate (bicarbonate) ion?
CO3−1
H2CO3−1
HCO3−1
HCO−1
A transition metal with a +4 charge should be indicated with which Roman numeral?
Roman numeral (III)
Roman numeral (VI)
Roman numeral (IV)
Roman numeral (V)
Which Roman numeral corresponds to a transition metal with a +5 charge?
Roman numeral (IV)
Roman numeral (VII)
Roman numeral (V)
Roman numeral (VI)
Which formula represents the hydroxide ion?
OH−1
HO−1
O2H−1
H2O−1
Group 4A metals most commonly exhibit which oxidation state?
+4 oxidation state
+2 oxidation state
+6 oxidation state
+1 oxidation state
What is the correct formula for the hypochlorite ion?
ClO−1
ClO2−1
Cl−1
ClO3−1
Which oxidation state is typical for group 7A nonmetals in ionic compounds?
−3 oxidation state
−1 oxidation state
+3 oxidation state
+1 oxidation state
Select the correct formula for the iodate ion.
IO3−1
I2O3−1
IO2−1
IO4−1
Group 5A nonmetals usually have which oxidation state?
−1 oxidation state
−3 oxidation state
+5 oxidation state
+3 oxidation state
What oxidation state do group 6A nonmetals most often adopt?
−4 oxidation state
+6 oxidation state
+2 oxidation state
−2 oxidation state
Group 6A metals are commonly found in which oxidation state?
+6 oxidation state
+1 oxidation state
+2 oxidation state
+4 oxidation state
Which formula corresponds to the nitrate ion?
NO2−1
NO3−1
N2O3−1
NO4−1
Which ion is paired with the correct −2 charge state and chromium?
Chromate, CrO4-2
Chromate, Cr2O7-2
Dichromate, CrO4-2
Dichromate, Cr2O8-2
Identify the correct ion that contains carbon and carries a −2 charge.
Peroxide, O2-2
Oxalate, C2O4-2
Carbonate, CO2-2
Thiosulfate, S2O3-2
Which formula corresponds to thiosulfate?
SCN-1
SO4-2
SO3-2
S2O3-2
Choose the correct match for dichromate.
Cr2O7-2
CrO4-2
HPO4-2
C2O4-2
Which of the following is the correct formula for hydrogen sulfate (bisulfate)?
HSO3-1
H2SO4
H2SO3
HSO4-1
Which is the correct Roman numeral used for Transition metal with a +6 charge?
Which correctly represents hydrogen sulfite (bisulfite)?
HSO3-1
H2S2O3-1
HSO4-1
H2SO3-1
What is the oxidation state of group 3A metals?
-3
Which of the following is the correct combination for the oxidation states of nonmetals in groups 4A and 5A?
-4 for group 4A;
-3 for group 5A.
-1 for group 4A;
-3 for group 5A.
-3 for group 4A;
-2 for group 5A.
-2 for group 4A;
-4 for group 5A.
Which of the following correctly represents nitrite?
N2O2-1
NO2-1
NO3-1
NH4+1
What is the correct name for ClO4-1?
What is the correct name for MnO4-1?
What is the correct name for SCN-1?
What is the correct name for CO3-2?
What is the correct name for HPO4-2?
What is the correct name for O2-2?
Dioxide
Superoxide
Ozone
Peroxide
What are the correct names for SO4-2 and SO3-2 in the same order?
Sulfide and sulfate
Sulfate and sulfide
Sulfate and sulfite
Sulfite and sulfate
What is the correct name for BO3-3?
What is the correct name for PO4-3?
What is the correct name for PO3-3?
