Bismuth (Bi) VS Polonium (Po)
A definitive side-by-side comparison of two essential element profiles.
VS
Main Differences
Bismuth (Bi) is an element in the post-transition metals category with an atomic number of 83. Polonium (Po) is an element in the post-transition metals category with an atomic number of 84.
Bismuth (Bi) is 1.1x denser than Polonium (Po). Furthermore, Bismuth (Bi) melts at a significantly higher temperature than Polonium (Po) (a difference of 17.7 Kelvin).
Where do the names come from?
Bi Bismuth (Bi) Naming History
The name Bismuth come from the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass.
Po Polonium (Po) Naming History
Polonium is named after Poland, the native country of Marie Curie, who first isolated the element.
Related Comparisons
Compare
Bismuth (Bi)
Polonium (Po)
Category
Post-transition Metals
Post-transition Metals
Atomic Number
83
84
Symbol
Bi
Po
Atomic Mass
208.98 u
[209] u
Group
15
16
Period
6
6
Block
p-block
p-block
Standard State (at 20°C)
solid
solid
Density
9.78 g/cm³
9.2 g/cm³
Melting Point (°C)
271.406°C
254°C
Melting Point (°F)
520.531°F
489°F
Melting Point (K)
544.7 K
527 K
Boiling Point (°C)
1564°C
962°C
Boiling Point (°F)
2847°F
1764°F
Boiling Point (K)
1837 K
1235 K
Year Discovered:
1753
1898
CAS Number
7440-69-9
06/08/7440
Origin of Name:
The name come from the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass.
Polonium is named after Poland, the native country of Marie Curie, who first isolated the element.