Bi
Bismuth · element 83
Post-Transition Metal · Solid at room temperature
Bismuth is a chemical element with symbol Bi and atomic number 83. Bismuth, a pentavalent post-transition metal, chemically resembles arsenic and antimony. Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores.
Key facts
Atomic mass
208.980401 u
how heavy one atom is
Phase (room temp.)
Solid
Density
9.78 g/cm³
how tightly packed it is
Melting point
544.7 K (272 °C)
when solid turns to liquid
Boiling point
1837 K (1564 °C)
when liquid turns to gas
Period
6
its row in the periodic table
Group
15
its column in the periodic table
Block
P-block
the neighbourhood it lives in
Electronegativity
2.02
how strongly it pulls electrons
Electron configuration
[Xe] 4f14 5d10 6s2 6p3
where its electrons live
Shells
2 · 8 · 18 · 32 · 18 · 5
electrons in each layer, inside to out
Discovered by
Claude François Geoffroy
who found it
Appearance
lustrous silver
what it looks like
Source: Wikipedia