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Fund. C & D - Student Presentations

Fund. C & D - Student Presentations - Ions The...

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Ions The periodic table tells you what ion will form! Left – cations Right – anions Naming simple cations and anions The monoatomic anions are named by adding the suffix -ide to the stem of the name of the nonmetallic elements Ex – Chloride ion The monoatomic cations bear the same names of the elements with the addition of the word 'ion'. Ex – sodium ion Naming Type II cations – transition metals Type II cations: Some metals (especially the transition metals) can form more than one type of cation, such as Fe 2+ and Fe 3+ or Cu + and Cu 2+ . To distinguish between these ions indicated the charge of the ion with a Roman numeral in parentheses (called the Stock number) immediately following the ion's name. Ex - Fe 2+ iron(II) ion and Fe 3+ iron(III) ion
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Naming Type I ionic compounds: metal + non-metal Type I: consisting of a metal combined with a nonmetal (e.g. NaCl) These metals always make the same cation so there is no need to list a Roman numeral.
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