which is the most Poisonous and deadlest element on the pereodic table

Question: which is the most Poisonous and deadlest element on the pereodic table
- Keywords:
  chemical,
  deadliest,
  deadly,
  element,
  periodic table,
  poison,
  poisonous
Asked by owry12 to Stu, Helen on 23 Jun 2011.
- Helen O'Connor answered on 23 Jun 2011:
  
  I think the answer is plutonium. Although mercury is probably a close second.
  
  But it might be worth googling it as I’m a sport scientist, not a chemist so I might not have that right!
- Stuart Mourton answered on 23 Jun 2011:
  
  Not really my field of expertees either i’m afraid, i imagine there’s quite a few that you really wouldn’t want to put in a sandwich though!!

Question: which is the most Poisonous and deadlest element on the pereodic table