Tabla Periódica: Metaloides

Tabla Periódica: Metaloides

Los metaloides son conocidos también como semimetales, y son aquellos elementos químicos que poseen propiedades intermedias entre los metales y no metales.

Son 7 los metaloides en la tabla periódica: boro, silicio, germanio, arsénico, antimonio, telurio y polonio.

 

Propiedades de los metaloides

  • Presentan un comportamiento intermedio entre metales y no metales.
  • En su mayoría, tienden a reaccionar químicamente con no metales, a excepción del compuesto boruro de magnesio.
  • Son mejores conductores de calor y electricidad que los no metales, pero no tan buenos conductores como los metales.
  • Pueden presentar brillo (como los metales) o ser opacos (como los no metales).
  • Son frágiles y su forma cambia fácilmente.
  • No son maleables.
  • Se contraen cuando se funden.

4 Comments

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