NAMING IONIC COMPOUNDS Ionic Compounds An ionic compound
![Rules in Naming • Cations then Anions • Cations: [Element Name] “Ion” • Anions:](https://slidetodoc.com/presentation_image_h2/3e328b738434621fde80c737b096231b/image-5.jpg "Rules in Naming • Cations then Anions • Cations: [Element Name] “Ion” • Anions:")
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NAMING IONIC COMPOUNDS
Ionic Compounds • An ionic compound is a bond between a metal and a non- metal. • Electrons are stolen and given.
Name to Formula • Step 1: Identify the charge of each element. ex: Sodium Chloride Na 1+ Cl 1 • Step 2: Switch the exponent values (drop the charge) to subsets of the other element. ex: Na 1 Cl 1 • Step 3: Simplify and combine abbreviations. ex: Na. Cl
Formula Rules • Simplify the number of elements: • If the numbers are the same they disappear. • If the numbers can be factored, reduced.
Rules in Naming • Cations then Anions • Cations: [Element Name] “Ion” • Anions: [Stem of element name]+”ide • When combining the two the word “Ion” is dropped.
Formula to Name • Step 1: Switch the subsets to exponents of the other element. ex: Li 2 O -> Li 1 O 2 • Step 2: Label the first element as a cation (+) and the second as a anion (-). ex: Li 1+ O 2 - • Step 3: Make sure the charge of each is correct by looking at oxidation values. • Step 4: Identify ions following rules for anions and cations. ex: Lithium Oxide
Identifying Names If charges do not match the oxidation value of the element: • Determine the needed value • Multiply both charges by that value If the cation is a transition metal with multiple possible charges, put the charge as roman numerals in parenthesis after the name.
