Barrons SAT Subject Test Chemistry, 13th Edition

CATEGORY II—Binary ionic compounds where the metal forms more

than one type of ionic compound with a given negatively charged ion

(anion)

CATEGORY III—Binary covalent compounds formed between two

nonmetals

Table 6 is a list of ions that are often encountered in a first-year chemistry course.
You should know them. Although using the Periodic Table can help you write the
symbol and apparent charge of cations and anions, knowing these common ions
can help you write formulas and equations.

Table 6. Table of Common Ions Used In a First-Year Course