ESL Saigon logo

Chemistry


Antimony

Name: Antimony
Symbol: Sb
Number of Energy Levels: 5
Electrons on the outer energy level: 5
Atomic number: 51
Atomic Mass: 121.76 Amu (Atomic Mass Units)
Protons/Electrons: 51
Neutrons: 71
Density: 6.684 g/cm3
Classification: Metalloid

Antimony | Chemical elements

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).

Top 8 interesting facts about Antimony

  1. Antimony is a silvery-gray metal.
  2. Antimony is stable at room temperature but it reacts with oxygen if heated.
  3. Antimony is very resistant to acid’s attack.
  4. Antimony has two stable isotopes: 121-Sb and 123-Sb (other 35 radioisotopes are known).
  5. Antimony is not an abundant element but it is found in more than 100 minerals (mainly is the stibnite mineral).
  6. The main producer of antimony is China followed by South Africa, Bolivia, Russia, Myanmar, Canada, Australia, and Tajikistan.
  7. Antimony is mainly used in flame retardants.
  8. Antimony’s other applications are: alloys for batteries, plain bearings, solders, TV screens, as a pigment, and in semiconductor industry.

Back to index