Ionic Compounds and Solutions. SNC2D. Electrostatic attraction. Electrostatic attraction. When a metal gives up one or more electrons to a non-metal, the resulting oppositely-charged ions will experience an electrostatic attraction:. Ionic bonds and compounds.
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Ionic Compounds and Solutions
When a metal gives up one or more electrons to a non-metal, the resulting oppositely-charged ions will experience an electrostatic attraction:
This electrostatic attraction is called an ionic bond.
The resulting compound is an ionic compound.
Note that the name of the positive ion is always written first in the name of the compound. (We will do more on naming and formulas next week.)
In nature, this electrostatic attraction produces regular crystal lattice structures:
An ionic compound dissolved in water is said to be aqueous (aq).
Recall that a solution is a homogenous mixture of pure substances; in this case, the pure substances are the ionic compound and water.
These compounds dissolve in water because one side of the water molecule (H2) is positive and attracts the negative ions and the other side is (O) is negative and attracts the positive ions.
Because the charged ions can move freely, solutions of ionic compounds are good conductors of electricity.
It is possible to test samples of water for the presence of particular ions because these ions will react in predictable ways with testing solutions of other ionic compounds.
Please refer to your lab handout for directions.