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Iones - Overview

Nombres alternativos

Cationes; aniones

Definición:

Un ión es un átomo o grupo de átomos que tienen una carga eléctrica. Los iones con carga positiva se denominan cationes y los que tienen carga negativa se denomina aniones.

Muchas sustancias normales existen en el cuerpo como iones. Los ejemplos comunes incluyen sodio, potasio, calcio, cloruro y bicarbonato. (Ver: electrolitos)

Los iones se pueden crear utilizando radiación, como los rayos X. La radiación ionizante se utiliza frecuentemente para procedimientos diagnósticos o terapéuticos, dado que los iones que se producen se pueden utilizar para rastrear o tratar algunas enfermedades.

Temas relacionados:

  • Reviewed last on: 8/9/2009
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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