Chapter 8 Chemical Bonding Concepts

Question 1

Octet Rule

Answer 1

Atoms tend to gain, lose, or share electrons until they are surrounded by eight valence electrons

Question 2

Ionic Bonding

Answer 2

attractions btw opposite charged ions

Question 3

Covalent Bonding

Answer 3

molecules formed by sharing of electrons

Question 4

Metallic Bonding

Answer 4

molecules formed by electrons that are free to move through metal

Question 5

Bond Polarity

Answer 5

measure of how equally/unequally electrons in covalent bond are shared

Question 6

Non-polar covalent bond

Answer 6

electrons are shared equally

Question 7

Polar Covalent Bond

Answer 7

one atom exerts greater attraction for bonding electrons than the other

Question 8

Electronegativity

Answer 8

ability of an atom in a molecule to attract electrons to itself

Question 9

Dipole Moment

Answer 9

measurement of magnitude of a dipole

Question 10

Exceptions to Octet Rule

Answer 10

1) odd # of electrons 2)few than an octet of valence electrons (PF3) 3) more than an octet of valence electrons (PF5)

Question 11

Shorter bonds have

Answer 11

higher bond enthalpies

Question 12

Greater difference in electronegativity, the molecule increases in

Answer 12

polarity

Question 13

Central atom should be the…

Answer 13

least electronegative (except Hydrogen)