Bismuth

Bismuth 208.98038(2)   Bi 83 1s22s22p63s23p63d104s24p6 4d105s25p64f145d106s26p3 [ ? ] Post-Transition Metal: Properties: White with pinkish tinge. Brittle, crystalline metal.

Bismuth is a chemical element, having the chemical symbol Bi. Its atomic number (the number of protons) is 83. It has a standard atomic weight of 208.9804 g•mol ⁻¹ and is a solid in its elemental form.

Bismuth is considered a member of the "Post-transition metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 1,564 °C and a melting point of 271.4 °C.