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activity 3: name the ions activity: naming ions test complete the table…

Question

activity 3: name the ions

activity: naming ions test

complete the table by providing the correct name for each ion.

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$$\begin{tabular}{|l|l|} \\hline \\text{ion symbol} & \\text{name of ion} \\\\ \\hline \\text{k}^+ & \\\\ \\hline \\text{mg}^{2+} & \\\\ \\hline \\text{ag}^+ & \\\\ \\hline \\text{f}^- & \\\\ \\hline \\text{s}^{2-} & \\\\ \\hline \\text{p}^{3-} & \\\\ \\hline \\text{cu}^+ & \\\\ \\hline \\text{cu}^{2+} & \\\\ \\hline \\text{oh}^- & \\\\ \\hline \\text{no}_3^- & \\\\ \\hline \\text{so}_4^{2-} & \\\\ \\hline \\text{co}_3^{2-} & \\\\ \\hline \\text{nh}_4^+ & \\\\ \\hline \\end{tabular}$$

Explanation:

Identify monatomic cations

Cations are positively charged ions. For monatomic metal cations with a fixed charge, the name is simply the element name followed by the word "ion".

  • \(\text{K}^+\): Potassium ion
  • \(\text{Mg}^{2+}\): Magnesium ion
  • \(\text{Ag}^+\): Silver ion

Identify monatomic anions

Anions are negatively charged ions. For monatomic anions, the suffix of the element name is replaced with "-ide", followed by the word "ion".

  • \(\text{F}^-\): Fluoride ion
  • \(\text{S}^{2-}\): Sulfide ion
  • \(\text{P}^{3-}\): Phosphide ion

Identify transition metals with variable charges

Transition metals like copper can form ions with different charges. In systematic IUPAC nomenclature, Roman numerals in parentheses indicate the charge.

  • \(\text{Cu}^+\): Copper(I) ion
  • \(\text{Cu}^{2+}\): Copper(II) ion

Identify polyatomic ions

Polyatomic ions are groups of covalently bonded atoms with an overall charge. Their names are specific and must be memorized.

  • \(\text{OH}^-\): Hydroxide ion
  • \(\text{NO}_3^-\): Nitrate ion
  • \(\text{SO}_4^{2-}\): Sulfate ion
  • \(\text{CO}_3^{2-}\): Carbonate ion
  • \(\text{NH}_4^+\): Ammonium ion

Answer:

Ion SymbolName of Ion
\(\text{Mg}^{2+}\)Magnesium ion
\(\text{Ag}^+\)Silver ion
\(\text{F}^-\)Fluoride ion
\(\text{S}^{2-}\)Sulfide ion
\(\text{P}^{3-}\)Phosphide ion
\(\text{Cu}^+\)Copper(I) ion
\(\text{Cu}^{2+}\)Copper(II) ion
\(\text{OH}^-\)Hydroxide ion
\(\text{NO}_3^-\)Nitrate ion
\(\text{SO}_4^{2-}\)Sulfate ion
\(\text{CO}_3^{2-}\)Carbonate ion
\(\text{NH}_4^+\)Ammonium ion