Introduction to Bonding

Question 1

Chemical Bonding

Answer 1

attractive force between atoms/ions that binds them together as a unit

Question 2

Atoms form bonds in order to…

Answer 2

decrease potential energy
increase stability

Question 3

covalent bonding:

Answer 3

e- are shared between atoms in a molecule or in a polyatomic ion

Question 4

ionic bonding:

Answer 4

positively/ negatively charged ions are held together by electrostatic forces
e- are transferred
- full charges on resulting ions

Question 5

Two types of Covalent Bonds:

Answer 5

-polar
-non-polar

Question 6

Polar covalent:

Answer 6

an unequal attraction for shared e- creating partially charged poles (asymmetrical e- density)
s+ & s-
-partial charges on atoms

Question 7

Non-polar Covalent:

Answer 7

e- are shared equally: symmetrical e- density
- no charges on atoms

Question 8

Electronegativity:

Answer 8

the measure of an atom’s ability to attract e-‘s

Question 9

For Polar Covalent Bonds:
higher electronegative atom=
lower electronegative atom=

Answer 9

= s-
= s+

Question 10

For Ionic Bonds:
higher electronegative atoms forms…
lower electronegative atom forms…

Answer 10

-anion (gains e-)
-cation (losses e-)

Question 11

Diff. in electronegativity (END) determines

Answer 11

bond type

Question 12

0.0 - 0.3

Answer 12

nonpolar-covalent

Question 13

0.3- 1.7

Answer 13

polar covalent

Question 14

1.7- 3.3

Answer 14

ionic

Question 15

Covalent ____+____:

Answer 15

Nonmetal + Nonmetal

Question 16

ionic _____+______

Answer 16

metal + nonmetal