chap-8-2011W

# From step step 2 arrange atoms in reasonable

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tures Step Step 1: Calculate total valence electrons from all atoms. from Step Step 2: Arrange atoms in reasonable positions. Connect atoms by single lines; each line equals one pair (2e) of bonding electrons. Step 3: Distribute electrons to satisfy octets of atoms to bonded to the central atom Step 4: a) Place any leftover electrons on the central atom b) Try multiple bonds, if there are no enough multiple electrons to give the central atom an octet Lewis Structures 4-step procedure for structure of CO2 CO Step 1: calculate the total valence electrons from all atoms. from C: C: 4 e × 1 = 4 e O: 6 e × 2 = 12 e Total valence electrons = 4 + 12 = 16 e 16 Step 2: arrange atoms in reasonable positions for bonding. (Connect atoms by single lines; each line equals one pair (2e) of bonding electrons. ) O C O Drawing Lewis Structures Step 3: Distribute electrons to satisfy octets of atoms bonded bonded to the central atom. OC O O’s are surrounded by 8e → octet. C is surrounded by 4e only → need 4 more! Drawing Lewis Structures Step 4: a) Place any leftover electrons on the central atom b) Try multiple bonds, if there are no enough multiple electrons to give the central atom an octet OC O Move two pairs into two bonding positions OC O All atoms are surrounded by 8e → octet! Drawing Lewis Structures But… But… Another Le...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online