Merge pull request #330 from augustineonyema/Inhition

Biological impact of Arsenic poisoning.

elements/arsenic.md

@@ -3,4 +3,4 @@ layout: page
 title: Arsenic
 ---
 
-This is a well-known human carcinogen. aka you're dead
+This is a well-known human carcinogen. aka you're dead. Arsenic poisons cells by chelating with enzymes. They replace other divalent ions in metalo-enzymes and inactivate such enzymes.