Chapter 2

Question 1

Polymers are ________________

Answer 1

very large molecules made up of many smaller molecules linked together

Question 2

Monomers are _______________

Answer 2

smaller molecules linked together

Question 3

The Atomic Weight of an element is _______________

Answer 3

the average of the atomic masses of the naturally occurring isotopes of the element

Question 4

Isotopes of an element have the same ________________

Answer 4

number of protons but a different number of neutrons

Question 5

A
X
Z

{X = _______ }

Answer 5

Symbol of the Element

Question 6

A
X
Z

{A = _______ }

Answer 6

Mass number (# of Protons + # of Neutrons)

Question 7

A
X
Z

{Z = _______ }

Answer 7

Atomic Number (# of Protons)

Question 8

11
Na
22.990

{11 = __________ }

Answer 8

The Atomic Number (or “Z” is the # of Protons)

Question 9

11
Na
22.990

{22.990 = __________ }

Answer 9

The Atomic Weight (the average of the atomic masses of the naturally occurring isotopes of the element)

Question 10

Isotope = same _______ , different _________

Answer 10

same CHARGE, different MASS

Question 11

Ion = same _______ , different _________

Answer 11

same MASS, different CHARGE

Question 12

Cations = _________________

Answer 12

ions with more PROTONS than ELECTRONS

Question 13

Anions = __________________

Answer 13

ions with more ELECTRONS than PROTONS

Question 14

Cations have a Net _____________ Charge

Answer 14

Positive

Question 15

Anions have a Net _____________ Charge

Answer 15

Negative

Question 16

Bond Energy is _____________

Answer 16

the energy needed to break 1 Mole of a specific bond

Question 17

What type of Compound is (H20) ?

Answer 17

Covalent (non ions)

Question 18

What type of Compound is (Na+Cl-)?

Answer 18

Ionic (ions)

Question 19

Why do Isotopes behave the same chemically?

A.) The number of neutrons has no effect on electrons
B.) They have the same mass
C.) Most Elements have only one isotope

Answer 19

A.) The number of neutrons has no effect on electrons

Question 20

Which is true of a monatomic cation?

A.) It has more neutrons than protons
B.) It has more electrons than protons
C.) It has more protons than electrons

Answer 20

C.) It has more protons than electrons

Question 21

Ionic Bonds are ____________

Answer 21

collections of OPPOSITELY charged ions that form an extended array called a lattice

Question 22

Covalent Bonds is _____________

Answer 22

bonding in which electrons are SHARED between the PAIRS OF ATOMS rather than donated from one atom to another

Question 23

In the Periodic Table of Elements (Group 1) has how much of an Ionic Charge?

Answer 23

+1 Ionic Charge

Question 24

In the Periodic Table of Elements (Group 2) has how much of an Ionic Charge?

Answer 24

+2 Ionic Charge

Question 25

In the Periodic Table of Elements (Group 13) has how much of an Ionic Charge?

Answer 25

+3 Ionic Charge

Question 26

In the Periodic Table of Elements (Group 14) has how much of an Ionic Charge?

Answer 26

+/- 4 Ionic Charge

Question 27

In the Periodic Table of Elements (Group 15) has how much of an Ionic Charge?

Answer 27

-3 Ionic Charge

Question 28

In the Periodic Table of Elements (Group 16) has how much of an Ionic Charge?

Answer 28

-2 Ionic Charge

Question 29

In the Periodic Table of Elements (Group 17) has how much of an Ionic Charge?

Answer 29

-1 Ionic Charge

Question 30

In the Periodic Table of Elements (Group 18) has how much of an Ionic Charge?

Answer 30

0 Ionic Charge