• Name: Antimony

  • Symbol: Sb

  • Number of Energy Levels: 5

  • Electrons on the outer energy level: 5

  • Atomic Number: 51

  • Atomic Mass: 121.76 Amu

  • Protons / Electrons: 51

  • Neutrons: 71

  • Density: 6.684 g/cm3

  • Classification: Metalloid

Top 10 interesting facts about Antimony

  • Antimony was discovered in ancient times. Antimony's name derives from the Greek words "anti" and "monos" which mean "opposed" and "solitude"; in one word, "not alone". Antimony's symbol derives from stibium (Latin), which is the ancient name of antimony sulfide.
  • Antimony's melting point is at 630.0 C (903.15 K, 1166.0 F) and its boiling point is at 1750.0 C (2023.15 K, 3182.0 F).
  • Antimony is a silvery-gray metal.
  • Antimony is stable at room temperature but it reacts with oxygen if heated.
  • Antimony is very resistant to acid's attack.
  • Antimony has two stable isotopes: 121-Sb and 123-Sb (other 35 radioisotopes are known).
  • Antimony is not an abundant element but it is found in more than 100 minerals (mainly is the stibnite mineral).
  • The main producer of antimony is China followed by South Africa, Bolivia, Russia, Myanmar, Canada, Australia, and Tajikistan.
  • Antimony is mainly used in flame retardants.
  • Antimony's other applications are: alloys for batteries, plain bearings, solders, TV screens, as a pigment, and in semiconductor industry.