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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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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Feasability of an Ion Engine For Manned Missions?
ION Drives are relatively new technologys, and have been used for small un-manned missions to comets and stuff, however, there incredibly weak (0.2N thrust from what i have read). Does this teachnology have the potential to accelerate something like a 5 tonne manned ship at 10m/s ? I have...- Bunting
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- Replies: 5
- Forum: Aerospace Engineering
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Soluble metal ion to make heavy water?
Hi people. I am asking this for a friend, and he's not here right now, so I'm doing my best to remember exactly what it was that he was looking for, but I know that he is looking for something which is soluble, and I think he said Metal Ion, which is non-toxic etc, that can be used to make...- Another God
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- Replies: 8
- Forum: Chemistry
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Square Planar Complex Ion Arrangements
Why is it that sometimes ligands that surround a transition metal ion form a square planar arrangement? Surely the best thing to do (according to electron pair repulsion theory) would be to form a tetrahedral arrangement. I have heard that complex ions with Nickel as the transition metal... -
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Boron Ion Battery: Exploiting Neutrons
Boron ion battery?? If B[11] reacts with a neutron, it yields one atom of C[12] and one atom of N. The Earth is constantly being bombarded by neutrons. Could a battery be developed to exploit the neutrons?- S = k log w
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- Replies: 10
- Forum: Other Physics Topics