Copy of Ionic Compounds - Models (5/28/2026)

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In chemistry, it can be helpful to represent chemicals using symbolic notation. For instance, the compound commonly known as table salt might be written as NaCl. However, solely speaking the symbolic characters when discussing chemistry, such as "en-ay see-ell" for salt, could be considered indirect. Additionally, formal compositions necessitate employing the full names of ionic combinations rather than just their formulas. Thus, familiarizing oneself with how to verbally identify these materials by their designated chemical names is crucial.

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Refer to Model 1 above:

a.) Find three elements whose atoms form only one cation: , , .

b.) Find three elements whose atoms form only one anion: , , .

c.) Find three elements whose atoms form two cations: , , .

d.) What area of the periodic table are these elements that form multiple ions?

Consider the ions of potassium (K) and sulfur (S). Write chemical formulas for all possible ionic compounds involving these ions, using the simplest ratio(s) of potassium (K) and sulfur (S).