Chem 105 Chapter 8

Question 0

Covalent bonds

Answer 0

Sharing if electrons between non-metals

Question 1

Ionic bonds

Answer 1

Transfer of electrons between metals ad non-metals

Question 2

Metallic bond

Answer 2

Bond between metals

Question 3

Ionic bond shape

Answer 3

Usually crystalline lattice

Question 4

Covalent bond shape

Answer 4

Series of geometric shapes based on VESPER

Question 5

Difference in EN that will make an ionic bond

Answer 5

ΔEN > 1.6

Question 6

Difference in En that will make a

non-polar covalent bond

Answer 6

ΔEN < 0.6

Question 7

Difference in EN that will make a polar covalent bond

Answer 7

0.6 < ΔEN < 1.6

Question 8

Free radical

Answer 8

Species with one lone electron

-very active

Question 9

Electronegativity

Answer 9

The ability of an atom to attract electrons to itself

“Pauling” Units

Question 10

Formal Charge Equation

Answer 10

(Group #) - [ ( # of e-) + ( # of bonds) ]

Question 11

Rules of polarity

Answer 11

• Non-Polar if only C & H are present 
• Non-Polar if no lone pairs and ligands      
     are the same 
• Polar if only one lone pair is present
• Polar no lone pairs and different  
      ligands
• polar if symetrical