||[Sep. 13th, 2003|04:19 pm]
The Question Club
I am a nursing student in general chemistry. I used to understand chemistry in high school, but I have forgotten much of it. I was wondering if anyone could help me with this:|
Covalent bonds. I know that in covalent bonding, atoms SHARE electrons to that they attain a filled valence shell and are therefore stable. In an ionic bond, atoms gain or lose electrons to another atom to form a full outer shell, and then the opposite charges attract the ions together forming a compound. MY QUESTION IS: in the case of, for example, the carbon atom....it has an atomic number of 6, and has four electrons in its valence shell. It needs 4 more electrons to become stable. I can get these electrons by sharing. THe Hydrogen atom(atomic number 1)has 1 electron in its valence shell, and needs one more electron in the shell to becoem stable.
If the carbon atom shares its valence electrons with 4 hydrogen atoms--and 4 hydrogen atoms share their valence electrons with a carbon atom. all of the atoms are able to fill their valence shells to reach a stable configuration.
Doesn't the carbon atom gain a charge, as it's atomic number is 6(6 protons) and it now has a full outer shell (thus 10 total electrons?)If it DOES have a charge, isn't it then considered an ion?
THanks for your help :)