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51 Metalloid
Sb

Antimony

RIS 0.008
Velocity +0.000
Rank#58
Co-citedAs

Antimony (Sb) is a metalloid with atomic number 51: a neutral antimony atom has 51 protons and 51 electrons. Atomic mass 121.76 u, electron configuration [Kr] 4d10 5s2 5p3. Antimony is a metalloid used since ancient times as a cosmetic and in flame retardants.

Physical properties
Atomic mass 121.76 u
Category Metalloid
Block p-block
State Solid
Config [Kr] 4d10 5s2 5p3
Electronegativity 2.05
Density 6.685 g/cm³
Melting 903.78 K
Boiling 1860.0 K
Ionization 834.0 kJ/mol
Oxidation -3, +3, +5
Discovered Known since antiquity
Antimony's history

Research intensity over time

Research communities behind this literature

Groups of papers that cite each other densely, with the share of Antimony's tracked research in each.