Chemical Bonding and Formula Writing

CHEMICAL BONDING AND FORMULA WRITING

Things to remember: ,[object Object],[object Object],[object Object],[object Object]

Chemical Bond – a mutual attraction of two atoms due to their number of valence electrons. ,[object Object],[object Object],2 TYPES:

Ionic Bond – an attraction between two ions. ,[object Object],[object Object],[object Object]

Sodium Fluoride (NaF) ,[object Object]

Other Similar Formulas: HBr FrAt HCl CsI RbF LiBr KCl LiF NaCl

Other examples of IONS An Aluminum atom must lose 3 electrons, while an Oxygen atom must gain two electrons. What would its chemical formula be?

Some Important Groups to Remember: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Polyatomic ions – ions containing more than one atom. ,[object Object],[object Object],[object Object],[object Object]

Writing Formulas with Polyatomic Ions Ca(OH) 2 Mg(OH) 2 Ga(OH) 3 Al(OH) 3 KOH HOH LiOH NaOH

Covalent Bond – an attraction between two atoms that share electrons. ,[object Object],[object Object]

Example of a Covalent Bond ,[object Object],[object Object]

[object Object],Covalent Bonding, continued….

Covalent Bonding, continued…. ,[object Object],CH 4

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