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OB: to review the properties of metals, nonmetals, ionic compounds, and then… Polyatomic Ions

OB: to review the properties of metals, nonmetals, ionic compounds, and then… Polyatomic Ions. Take out your reference tables and some paper for some notes. Define the Properties… Luster Ductile Malleable Conducts electricity Conducts heat Phase at room temp Forms Cations? Forms Anions?

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OB: to review the properties of metals, nonmetals, ionic compounds, and then… Polyatomic Ions

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  1. OB: to review the properties of metals, nonmetals, ionic compounds, and then…Polyatomic Ions Take out your reference tables and some paper for some notes.

  2. Define the Properties… Luster Ductile Malleable Conducts electricity Conducts heat Phase at room temp Forms Cations? Forms Anions? Relative Melting point Particle (atom, molecule, FU)

  3. All of our polyatomic ions will be found on table E on the front page of the reference tables They are multiple groups of atoms, acting as a single unit, with a charge, as an ION. Most are anions, but the first few are cations. Ammonium is common, the other 2 cations are much less common. The anions are all equally common in our course. Never change their names, ever. Some are similar in formula (sulfite and sulfate) but very different in name. Be careful. Lots have fun names to say out loud. Let’s say some now. When naming the ionic compounds, we always say the cation first, then the anion. These polyatomics can readily combine with the monoatomic ions from the periodic table.

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