Bismuth (Bi) is the heaviest nonradioactive element but the next heaviest is Lead (Pb) and that is much more commonly used.
The heaviest element that is naturally occurring, and also usable, though radioactive, is Uranium (U).
Radium
Raduim.....:p
Barium.
SO2 is the heaviest
The heaviest element in the periodic table (known in March 2013) is ununoctium.
Osmium has the highest density among metals so is heaviest metal.
through my knowledge osimum is the heaviest metal
By density, osmium is the heaviest (22.61 kgL-1). By atomic weight, ununpentium is the heaviest (228gmol-1)
Osmium
Radium
Neon
Raduim.....:p
Barium.
Ununhexium is the heaviest metal in the periodic table of elements. It is man made however, so it might not count. The heaviest natural metal might be Radium.
the diamond is the heaviest non metal
Osmium oh-s-me-umm
because caesium-55 is fatter than francium-89 Caesium is not the heaviest metal. In addition the atomic number of Francium is greater than Caesium