Monday
September 22, 2014

Homework Help: Chemistry

Posted by direct in Effect on Thursday, November 30, 2006 at 8:41pm.

What is the charatteristic of covalent bonding meaining what happens and then what is the result from what happened (like does it form a molecule, compund, etc. . .
Same thing for ionic bodnging

The ionic part is discussed below. Look for a chemistry post by smooches. Here is quick summary.
Ionic bonds are formed when a metal loses electrons (it becomes a + charged ion) to a non-metal (it becomes a - charged ion). The ionic bond is the attraction for the + and - ions for each other. Characteristics include the following:
Most are crystalline solids at room temperature.
The have high melting points and boiling points.
They conduct electicity in the molten state and when dissolved in water.
They are extremely polar.
Most are soluble in water but not in non-polar solvents.

Covalent bonds are formed when two or more atoms SHARE (as opposed to transferring as in ionic bonds) electrons. They form compounds that may or may not be polar. The polarity depends upon the differences in electronegativity of the elements combined. Non-polar covalently bonded compounds are gases or volatile liquids at room temperture, the compounds consist of separate molecules (as opposed to a three-dimensional array of + and - ions in a solid crystal in ionic bonds), they have low melting and boiling points, non-polar compuonds do not conduct electricity (polar covalent compounds will when dissolved in water), non-polar covalently bonded compounds do not dissolve in water but will dissolve in non-polar solvents. I hope this covers all of your question. If not just repost as an appendage to this reply.

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