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ion

ion

72 4.5
A charged particle like an atom that has extra or missing electrons
  • noun
  • /ˈaɪən/
  • Specialized
translation icon : ión
  • OK, now what if you use a bigger ion like cesium?
  • hydrogen ions
  • sodium ions
  • chloride ions

And then we've applied that field to get those ions in that same field then accelerates them.

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Examples

  • So ions enter solution, and some of those ions are calcium hydroxide.

  • It keeps these ions out of the cell by using these pumps.

  • So here we're trying to form an ion on this carbon, right?

  • You want the ions to move fast and solid.

  • Adam, check your ion readings.

  • And the third has to do with ion channels and pumps.

  • So let's now look at a different ion, sodium.

  • And it's a region where the magnetic field of the planet traps ions and electrons.

  • The NA plus ions neutralize these OH negative ions over here.

  • In an experiment, we found that the positive ion attracted electrons from the surrounding environment.

Compounds

ion engine
  • Specialized
3 6.6

An engine for spacecraft that pushes them by firing tiny charged particles very fast using electricity

calcium ion
  • Specialized
1 4.0

A small positively charged particle of calcium that helps blood to clot and muscles to move

ion beam
  • Specialized
1 7.7

A stream of charged atoms or molecules that moves fast in one direction

ion exchange
  • Specialized
1 5.8

A process that swaps charged particles in water with a solid to remove impurities

ammonium ion
  • Specialized
4.1

A positively charged particle formed from ammonia and found in many fertilizers

hydroxyl ion
  • Specialized
6.7

A particle with a negative charge made of one oxygen and one hydrogen atom

hydrogen ion
  • Specialized
4.9

A tiny particle with a positive charge that is one proton from a hydrogen atom

5.7

The amount of hydrogen ions in a liquid that shows how acidic it is

hydroxide ion
  • Specialized
5.1

A small negatively charged particle made of one oxygen and one hydrogen atom that makes solutions alkaline

ion pump
  • Specialized
7.7

A machine that removes gas from a sealed space by using electricity to make gas stick to metal

ion-exchange polymer
  • Specialized
6.9

A plastic material that removes minerals or metals from water by swapping charged particles with the liquid

ion-exchange resin
  • Specialized
6.9

Tiny hard beads that swap charged particles in water to remove minerals

How Ionized

to ionize
  • Specialized
15 7.2
ion
  • Specialized
72 4.5
neutrally
  • Specialized
1 4.0

Surface Forms

ion singular
ions plural

Etymology

Ion comes from an old Greek word ion meaning 'going'. Scientists used this name because atoms or molecules with an electric charge 'go' when pushed by electricity, so an ion is like a charged 'goer'.