This element is francium.
The heaviest element in the periodic table (known in March 2013) is ununoctium.
who introduced the first Periodic Table
A group in Periodic Table is the column of element in periodic table
The heaviest radioactively stable element in the same column of a wide form periodic table as nitrogen is bismuth.
The mass of an element increases as you go down the periodic table. The heaviest discovered (synthesized) metals are in the bottom row of the transition metals group.
Franium is part of the noble gases family on the periodic table. It has the atomic number 86 and is represented by the chemical symbol "Fr." At room temperature, francium is a highly reactive and rare element.
I think this is a trick question. The heaviest NATURAL element is Uranium (#92) but there are several heavier man-made ones. Every couple of years they are able to make another heavier one and IT becomes the heaviest. So I think the answer should be "there is no HEAVIEST element in the periodic table - it keeps changing."
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.
Calcium, Magnesium, and Radium are all in group two of the periodic table.
This number you see next to the name on the periodic table is called the atomic number. It is ordered from lightest to heaviest, judging of the weight of an element's specific atom.
group 14
The element in period 4, group 7 of the periodic table is Manganese (Mn).