just right down facts please. no, "I think that..." comments.
2006-11-04 06:49:59 · 2 answers · asked by *gasp* it's me! 3 in Science & Mathematics ➔ Chemistry
look here:
http://www.biologie.uni-hamburg.de/b-online/e18/18c.htm
2006-11-04 06:53:45 · answer #1 · answered by Dr. J. 6 · 0⤊ 0⤋
Covalent bond share electrons, no ions are formed (no charges). This usually happens with elements that have 4 or more electrons in their outer shells (H being an exception).
Ionic bonds are between atoms that have gained or lost electrons, giving them charges(+ and -). The joint to become neutral.
Hydrogen atoms form covalent bonds with other H atoms as they are never found alone. N, O, F, Cl, I, and Br also to this.
Van der waals is a force that exists between atoms in a molecule.
2006-11-04 16:26:41 · answer #2 · answered by teachr 5 · 0⤊ 0⤋