Chemical Bonds: Stability in Bonding Chapter 20 Section 1.

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Presentation transcript:

Chemical Bonds: Stability in Bonding Chapter 20 Section 1

Compounds Combination of Elements Properties different than the individual elements Ex: Sodium Chloride (NaCl)  Table Salt Na – highly reactive Cl – Poisonous Gas NaCl - Stable

Formulas Chemical Formula – The elements a compound contains and the exact number of atoms of each element Examples: Sand – Silicon Dioxide – SiO 2 Cane Sugar – Sucrose – C 12 H 22 O 11

Valence Electrons

Atomic Stability Stable when the outer energy level is complete Noble Gases – 8 valence electrons

Atoms with partially stable outer energy levels can gain, lose, or share electrons

Ionic Bond NaCl

Covalent Bond H 2 O

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