Antimony (Sb) is a chemical element belonging to the category Metalloid, with atomic number 51 and atomic mass 121.7600 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Stays within its layerAstronomy
Neighbourhood in the graph
Above, what contains it; below, what it contains; on the right, what links it to another layer.
Astronomy · Chemical element
Antimony
EL1F
Identity
Name: Antimony
Symbol: Sb
Atomic number: 51
Atomic mass: 121.7600 u
Position in the periodic table
Group: 15
Period: 5
Category: Metalloid
Physico-chemical properties
Standard state: Solid
Melting point: Intermediate (200°C to 1400°C)
Density: Medium
Electron configuration: [Kr] 4d¹⁰ 5s² 5p³
Scientific description
Antimony is a chemical element with symbol Sb and atomic number 51.
It is classified as a metalloid and occupies group 15 and period 5.
Its standard atomic mass is 121.7600 u.