What is Ion: Definition and 404 Discussions

An ion () is a particle, atom or molecule with a net electrical charge.
The charge of the electron is considered negative by convention. The negative charge of an ion is equal and opposite to charged proton(s) considered positive by convention. The net charge of an ion is non-zero due to its total number of electrons being unequal to its total number of protons.
A cation is a positively charged ion with fewer electrons than protons while an anion is negatively charged with more electrons than protons. Because of their opposite electric charges, cations and anions attract each other and readily form ionic compounds.
Ions consisting of only a single atom are termed atomic or monatomic ions, while two or more atoms form molecular ions or polyatomic ions. In the case of physical ionization in a fluid (gas or liquid), "ion pairs" are created by spontaneous molecule collisions, where each generated pair consists of a free electron and a positive ion. Ions are also created by chemical interactions, such as the dissolution of a salt in liquids, or by other means, such as passing a direct current through a conducting solution, dissolving an anode via ionization.

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  1. N

    Damaging lithium ion batteries

    So I have learned that all batteries have an internal resistance which will limit the current that it can output, so that you can't discharge a huge battery in a split second because of that internal resistance. But what I am wondering is, at what point is it dangerous to draw too much current...
  2. C

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  3. sweet springs

    Ion acccount in neuron after firing

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  4. X

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    Homework Statement The concentration of Al3+ ion in aqueous solution of Al2(SO4)3 is 0.28M, Then the concentration of SO42- ion in this solution will be? Homework Equations Al2(SO4)3 → 2Al3+ + 3SO42- The Attempt at a Solution What should i compare to start of with?
  5. X

    Chemistry How many moles of valence electrons are in 1 mole of nitride ions?

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  6. E

    Positive Ion passing through a Magnetic Field

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  7. M

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  8. B

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  9. A

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  10. B

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  11. B

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  12. P

    With what speed does the ion enter the magnetic field in a mass spectrometer?

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  13. P

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  14. C

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  15. AakashPandita

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  16. T

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  17. F

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  18. 1

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  19. J

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  20. N

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  21. marcus

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  22. R

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  23. C

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  24. T

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  25. N

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  26. B

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  27. O

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  28. R

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  29. Biosyn

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  30. A

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  31. 1

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  32. B

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  33. B

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  34. 1

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  35. C

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  36. C

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  37. Z

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  38. A

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  39. F

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  40. C

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  41. R

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  42. S

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  43. A

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  44. Z

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  45. Z

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  46. P

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  47. J

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  48. T

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  49. M

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  50. A

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