Ch Chemical Bonds I. Why Atoms Combine (p ) Chemical Formula

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Presentation transcript:

I. Why Atoms Combine (p.298-302) Ch. 11 - Chemical Bonds I. Why Atoms Combine (p.298-302) Chemical Formula Chemical Bond Stability

H2O A. Chemical Formula Shows: 1) elements in the compound 2) ratio of their atoms H2O 1 oxygen atom 2 hydrogen atoms

B. Chemical Bond Strong attractive force between atoms or ions in a molecule or compound. Formed by: transferring e- (losing or gaining) sharing e-

Ne C. Stability Octet Rule most atoms form bonds in order to have 8 valence e- full outer energy level like the Noble Gases! Ne Stability is the driving force behind bond formation!

C. Stability Transferring e- Sharing e-

D. Oxidation Number The charge on an ion. Indicates the # of e- gained/lost to become stable. 1+ 2+ 3+ 4+ 3- 2- 1-