-ous (smaller +, more electrons) [example - Fe2+ = ferrous]
-ic (larger +, fewer electrons) [example - Fe3+ = ferric]
hypo--ite (ClO- = hypochlorite)
-ite (ClO2- = chlorite)
-ate (ClO3- = chlorate)
per--ate (ClO4- = perchlorate)
HYPO = less (oxygens)
hyPER = more (oxygens)
i don't know how to remember it in a dirty way. but that should be it... i hope.
oh, how about this one:
I is always smaller than US (or "A") so whenever u have an "I" in there, u know it refers to fewer oxygens and/or fewer electrons.
there we go. now at least I'll never forget... hope it helped!
PS. I feel like going through this forum is good DAT prep in itself. 👍