Antimony

Antimony ( /ænˈtɪmɵni/ an-TI-mo-nee or  /ˈæntəˌmoʊni/ AN-tə-MOH-nee; Latin: stibium) is a toxic chemical element with the symbol Sb and an atomic number of 51. A lustrous grey metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was erroneously identified as lead. It was established to be an elem... More

Chemical Element

The 51st Element in the Periodic Table

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Tin

Tin ( /ˈtɪn/ TIN) is a chemical element with the symbol Sn (for Latin: stannum) and atomic number 50. It is a main group metal in group 14 of the...

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Tellurium

Tellurium ( /tɨˈlʊəriəm/ tə-LOOR-ee-əm or /tɛˈlʲʊəriəm/ te-LOOR-ee-əm) is a chemical element that has the symbol Te and atomic number 52. A brittle,...

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Symbol:

  • Sb

Atomic mass:

Mass Uncertainty
  • 121.76 u (2.0219E-16 µg )
  • 0.001 u (1.66E-21 µg )

Electron affinity:

Value Uncertainty
  • 1.0474 eV (0.0000010474 MeV )
  • 0.00002 eV (2E-11 MeV )

Electronegativity (Pauling scale):

  • 2.05

Covalent radius:

  • 1.38 pm (5.43E-8 )

Van der Waals radius:

  • 220 pm (0.00000866 )

Melting Point:

  • 630.76 °C (1167.4 °F )

Chemical series:

Periodic table block:

Ionization Energy:

  • 8.6084 eV (0.0000086084 MeV )

Discovery Date:

  • 800 C.E.

Electron Configuration:

  • Kr 4d10 5s2 5p3
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Drug ingredient

Active moiety of formulation:

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Active moiety of drug:

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