2 Anions and Cations OH My!!! Anions are Negative IonsA Negative ION = ANIONCations are Positive Ionsca+ions (meow)
3 An anion (-) (pronounced æn. aɪ An anion (-) (pronounced æn.aɪ.ən or an-eye-ən), from the Greek word ἄνω (ánō), meaning "up", is an ion with more electrons than protons, giving it a net negative charge.A cation (+) (pronounced kæt.aɪ.ən or kat-eye-ən), from the Greek word κατά (katá), meaning "down", is an ion with fewer electrons than protons, giving it a positive charge.
4 Some Common Polyatomic Anions Acetate CH3COO−Carbonate CO3−2Chlorate ClO3−Chromate CrO4−2Cyanide CN−Dichromate Cr2O7−2Hydroxide OH−Nitrate NO3−Nitrite NO2−Permanganate MnO4−Phosphate PO4−3Sulfate SO4−2
5 Some Common Polyatomic Cations meowAmmonium NH4+Hydronium H3O+
6 DisclaimerAloha I put together these power points for use in my science classes. You may use them in your classes. Some images are public domain, some are used under the fair-use provisions of the copyright law, some are mine. Copyright is retained by the owners!Ted Brattstrom