Polyatomic Ions Formulas Worksheet Polyatomic Ions Worksheet Polyatomic Practice 1 Name or write the formula for the following polyatomic ions sulfate nitrite perphosphate hypoiodite chlorite phosphite percarbonate bromate hyposulfite permanganate carbonite CO3 2 MnO3 1 SO5 2 BrO2 1 CO4 2 PO5 3 ClO1 IO2 1 PO4 3 NO2 1 SO4 2 2
Use this naming polyatomic ions list and worksheet answers provided to quickly learn important chemical names and formulas There are 4 exercises to practice plus complete instructions in the 5 page packet Click here for complete instructions in video format Table 3 4 1 3 4 1 lists the ion names and ion formulas of the most common polyatomic ions For example NO 3 NO 3 is the nitrate ion it has one nitrogen atom and three oxygen atoms and an overall 1 charge Note that there are two polyatomic ions in this table the ammonium ion and hydronium ion that are cations
Polyatomic Ions Formulas Worksheet
Polyatomic Ions Formulas Worksheet
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Common Polyatomic Ions Alphabetical order by ion name NOTE ite ending means one less oxygen than the ate form Ion Name Acetate Ammonium Arsenate Arsenite Azide Borate Bromate Bromite Carbonate Chlorate Chlorite Ion Symbol CH3CO2 or CH3COO NH4 AsO4 3 AsO33 N3 BO3 2 BrO3 BrO2 CO3 2 ClO3 ClO2 Ion Name Dichromate Polyatomic Ions Worksheet Answer Key Polvatomic Practice Name or Mite the formula for the following polyatomic ions carbonate manganate persulfate bromite percarbonate perphosphate hypochlorite iodite phosphate nitrite sulfate 2 sulfate nitrite perphosphate hypoiodite chlorite phosphite percarbonate bromate hyposulfite permanganate carbonite No
Figure 3 6 1 Polyatomic Ions Infographic Polyatomic ions have defined formulas names and charges that cannot be modified in any way Table 3 6 1 lists the ion names and ion formulas of the most common polyatomic ions For example NO 3 is the nitrate ion it has one nitrogen atom and three oxygen atoms and an overall 1 charge Exercise 5 5 2 Write the chemical formula for an ionic compound composed of each pair of ions the calcium ion and the oxygen ion the 2 copper ion and the sulfur ion the 1 copper ion and the sulfur ion Answer a Answer b Answer c Be aware that ionic compounds are empirical formulas and so must be written as the lowest ratio of the ions
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What is common about most of the names of the polyatomic ions 3 What element do most of the polyatomic ions have in the formula 4 What type of elements are found in the polyatomic ions metal nonmetal Naming ionics with polyatomic ions Identify the compound as an ionic compound first begins with a metal and ends with nonmetal s Polyatomic ions are charged groups of atoms An example is ammonium ion NH4 It has five atoms one nitrogen and four hydrogens that share a charge of 1 The polyatomic ions remain intact and parentheses may be required when using subscripts For example ammonium chloride is NH4Cl and ammonium sulfide is NH4 2S
Common Polyatomic Ions Name s Formula Name s Formula ammonium NH4 acetate CH3COO C2H3O2 bromate BrO3 carbonate CO3 2 chlorate ClO3 chlorite ClO2 chromate CrO4 2 cyanide CN dichromate Cr2O7 2 hydrogen carbonate bicarbonate HCO3 hydrogen sulfate bisulfate HSO4 Polyatomic Ions are groups of atoms that tend to stay together and carry an overall ionic charge Examples ammonium NH4 carbonate CO32 To name compounds with polyatomic ions Follow
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Polyatomic Ions Formulas Worksheet - The polyatomic ion acts as a single unit i e they are molecular ions The writing formula of compounds containing polyatomic ions is the same as writing the formula of a binary ionic compound except that the polyatomic ions must remain intact as a unit If a subscript is needed for the anion place the polyatomic ion within small brackets