View Single Post
Old 05-25-2012, 08:06 PM   #2
Senior Member
 
Status: Pre-Dental
Join Date: Jun 2008
Posts: 156
SDN 2+ Year Member
Default

Arsenic is one of the metalloids that can form multiple oxidation numbers.
just memorize it, it's one of the metalloids DAT loves.
dental13 is offline   Reply With Quote