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Fall Semester Review

Total questions: 95

Worksheet time: 2hrs 25mins

Name
Class
Date
1.
In covalent bonds, electrons are ___________.
a)
transferred
b)
gained
c)
lost
d)
shared
2.

(2 points) Based on your understanding of atomic structure, explain why we no longer accept Dalton’s theory that atoms of the same element are all the same.

4 lines
3.

(1 point) In a sample of pure copper, all atoms have

a)

the same atomic number and the same number of protons.

b)

a different atomic number and a different number of protons.

c)

a different atomic number but the same number of protons.

d)

the same atomic number but a different number of protons.

4.

(1 point) One atom contains 29 protons and 34 neutrons. A second atom of the same element has a mass number of 65. How many protons and neutrons does the second atom have?

a)

28 protons, 37 neutrons

b)

29 protons, 36 neutrons

c)

29 protons, 35 neutrons

d)

31 protons, 34 neutrons

5.

(3 points) An ion of sulfur has a negative two (-2) charge and a mass number of 34. How many of each subatomic particle are present in this ion?

4 lines
6.

(2 points) Which of the following represent pairs of isotopes?

4 lines
7.

How many periods are in the periodic table?

a)

18

b)

13

c)

7

d)

22

8.

The horizontal rows in the periodic table are called __.

a)

shells

b)

layers

c)

regions

d)

periods

9.

Elements in the periodic table are listed in order of their ___.

a)

number of electrons

b)

density

c)

atomic number

d)

discovery

10.

What is the symbol for copper?

a)

Co

b)

Cu

c)

Ag

d)

CU

11.

A group also be called a family.

a)

True

b)

False

12.

Elements are substances that can be broken down into simple substances.

a)

True

b)

False

13.

Elements in the same periods share similar properties.

a)

True

b)

False

14.

How many groups make up the periodic table?

a)

4

b)

10

c)

18

d)

8

15.

Alkali and Alkaline Metals are .....

a)

Reactive

b)

Non Reactive

c)

Dense

d)

Non-Dense

16.

Group ____ make up the halogen family.

a)

17

b)

Transition Metals

c)

10

d)

Noble Gases

17.

Transition Metals are very ____.

a)

reactive

b)

full of matter

c)

dense

d)

little

18.

Families or Groups have elements with similar ____ and ____ properties.

a)

Physical, Luster

b)

Physical, Chemical

c)

Chemical, Volume

d)

Physical, Color

19.

What is the symbol for Iron?

a)

Fe

b)

K

c)

Pb

d)

I

20.

Noble gases on the periodic table ______.

a)

don't react

b)

react

c)

change color

d)

are less dense

21.

___ invented the periodic table.

a)

Joe Biden

b)

Albert Einstein

c)

Dmitri Mendeleev

d)

Pierre Currie

22.

As the number of bonds between two carbon atoms increases, which of the following increases?

a)

Bond length

b)

Bond strength

c)

Both bond length and bond strength

d)

Neither bond length nor bond strength

23.

What is a Bohr Model?

a)

a simplified representation of an atom

b)

vertical column in periodic table

c)

horizontal row in periodic table

d)

Only shows the element symbol and it's outer most electron shell

24.

What are the names of the 2 models that we have been using?

a)

Bohr and Newton Structures

b)

Lewis and Caroll Models

c)

Bohr Model & Lewis Dot Structure

d)

Element & Atom structures

25.

Electron live in something called __________.

a)

nucleus

b)

orbits

c)

Shells or Energy levels

d)

Valences

26.

How many electrons can go in the Second energy level?

a)

2

b)

8

c)

18

d)

32

27.

What is the the outermost shell with electrons?

a)

Shells

b)

Isotope

c)

Orbit

d)

Valence

28.

What is the drawing of an atom that only has the symbol and the valence electrons?

a)

Lewis Dot Diagram

b)

Bohr Diagram

c)

Thompson Diagram

d)

Dalton Diagram

29.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
30.

Is this a correct dot diagram for fluorine (F)

a)

Yes

b)

No

31.

Is this a correct dot diagram for magnesium (Mg)

a)

Yes

b)

No

32.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

33.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
34.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
35.
Isotopes are elements with a different amount of
a)
protons
b)
neutrons
c)
electrons
d)
atoms
36.
How are electrons arranged in an atom?
a)
In groups of five
b)
In energy levels
c)
By color
d)
By shape
37.

What is the atomic number of this element?

a)

17

b)

18

c)

35

d)

35.453

38.

positive charged subatomic particles found in the nucleus

a)

Nucleus

b)

Proton

c)

Electron

d)

Neutron

39.

neutral charged subatomic particles found in the nucleus

a)

Nucleus

b)

Proton

c)

Electron

d)

Neutron

40.

negatively charged subatomic particles found in the area surrounding the nucleus

a)

Nucleus

b)

Proton

c)

Electron

d)

Neutron

41.

The weaker the intermolecular forces of a substance the _____________ the boiling point

a)

higher

b)

lower

42.

Which is the stronger intermolecular force present in I2, Br2, and Cl2.

a)

dipole dipole

b)

H-bond

c)

dispersion

d)

metallic

43.

The melting points and boiling points of substances can lead to inferences about the intermolecular attraction of the atoms of these substances because higher melting and boiling points indicate that

a)

the atomic mass of the substances is smaller.

b)

the substances produce exothermic reactions.

c)

atomic radii increases heat is added.

d)

more energy is needed to separate molecules.

44.
Does CH4 have hydrogen bonding?
a)
yes
b)
no
45.

Group 18 elements are called

a)

Alkali metals

b)

Alkaline Earth metals

c)

Halogens

d)

Noble gases

e)

Transition metals

46.

Which group has 1 valence electron (ve-)?

a)

Alkali metals

b)

Alkaline Earth metals

c)

Halogens

d)

Noble gases

e)

Transition, Lanthanide, and Actinide metals

47.

Great conductors of heat and electricity

a)

Alkali metals

b)

Alkaline Earth metals

c)

Halogens

d)

Noble gases

e)

Transition metals

48.

water is attracted to water

a)

adhesion

b)

cohesion

c)

nuclear fusion

d)

erosion

49.

the specific amount of heat needed to raise a substance's temperature by one degree Celsius

a)

surface tension

b)

polarity

c)

specific heat

d)

solubility

50.

Is water MORE dense as a liquid or solid?

a)

liquid

b)

solid

51.

Having two opposite tendencies or two opposite electrical charges

a)

density

b)

cohesion

c)

polarity

d)

solubility

52.

Why does oil float on top of water?

a)

Oil is polar, water is not

b)

Oil is less dense than water

c)

Oil is more dense than water

d)

None of the above

53.

Why could we get more drops of tap water on a penny than drops of soapy water?

a)

Adding soap broke the water's surface tension.

b)

Adding soap made the water's surface tension stronger.

c)

Soap is polar, water is not.

54.

What is the electron configuration for Fe?

a)
1s2 2s2 2p6 3s2 3p6 4s2 3d5
b)
1s2 2s2 2p6 3s2 3p6 4s2 3d7
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d10
d)
1s2 2s2 2p6 3s2 3p6 4s2 3d6
55.

What atom has the most electronegativity?

a)
Hydrogen
b)
Fluorine
c)
Oxygen
d)
Carbon
56.

What is the electron configuration of Chromium?

a)
[Ar] 3d5 4s1
b)
[Ar] 3d3 4s3
c)
[Ar] 3d4 4s2
d)
[Ar] 3d6 4s1
57.

What is the electron configuration of Zirconium?

a)
[Kr] 5s2 4d3
b)
[Kr] 5s1 4d2
c)
[Kr] 5s2 3d2
d)
[Kr] 5s2 4d2
58.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
59.
 The diagram above represents two electrons with 
a)
a. opposite spins.
b)
 b. the same spin.
c)
c. different energies.
d)
d. different energy levels.
60.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
61.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
62.

the basic building block of matter that makes up everything

a)

Bohr Model

b)

Atom

c)

Electron

d)

Proton

63.

a diagram that shows an atom’s nucleus and number of protons, surrounded by electron rings

a)

Bohr Model

b)

Atom

c)

Electron Cloud

d)

Lewis diagram

64.

Name the compound: N2O5.

a)

dinitrogen pentaoxide

b)

binitrogen pentaoxide

c)

nitrogen oxide

d)

pentanitrogen dioxide

65.

Name the compound: Cu(NO3)2

a)

copper nitrate

b)

copper(II) nitrate

c)

copper(II) dinitrate

d)

copper dinitrogen hepaoxide

66.

Name the compound: SO3

a)

sulfur trioxide

b)

sulfite ion

c)

sulfur oxide

d)

sodium trioxide

67.

Name the compound: P4O8

a)

tetraphosphorus octoxide

b)

phosphorus oxide

c)

tetrapotassium octoxide

d)

potassium oxide

68.

Write the formula: iodine heptafluoride

a)

IF7

b)

I2F14

c)

IHF7

d)

IF6

69.

Write the formula: tetraarsenic decoxide

a)

As4O10

b)

As10O4

c)

As6O9

d)

AsO

70.

Write the formula: carbon monoxide

a)

CO

b)

CO2

c)

OC

d)

C2O4

71.

Write the formula: lead(IV) sulfite

a)

Pb2(SO3)4

b)

Pb(SO3)2

c)

Pb2(SO4)4

d)

Pb(SO4)2

72.

What is Covalent Bonding?

a)

Bonding that is the result of two nonmetals sharing electrons

b)

Bonding between two metals

c)

Bonding that is the result of a nonmetal and a metal exchanging electrons

d)

Bonding between more than two elements

73.

What is ionic bonding?

a)

Bonding that is the result of two elements sharing electrons

b)

Bonding involving only one atom

c)

Bonding that is the result of an exchange of electrons between a metal and a nonmetal

d)

Bonding between two metals

74.

Which particle is responsible for bonding?

a)

Protons

b)

Electrons

c)

Neutrons

d)

Nucleus

75.

Which of the following is true about Covalent (non-polar) bonds? (select ALL true options)

a)

High melting point

b)

Low melting point

c)

Can dissolve in water

d)

Cannot dissolve in water

e)

Can conduct electricity

76.

What is a Lewis Dot Structure?

a)

It shows all of the particles in the atom.

b)

Contains protons and neutrons

c)

Only shows the element symbol and it's outer most electron shell

d)

Contains protons and electrons

77.

What is the drawing of an atom that only has the symbol and the valence electrons?

a)

Lewis Dot Diagram

b)

Bohr Diagram

c)

Thompson Diagram

d)

Dalton Diagram

78.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
79.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
80.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
81.
Which of the following is an acceptable Lewis structure for CH3Cl?
a)
Option A
b)
Option B
c)
Option C
d)
Option D
82.
Which of the following is the correct Lewis structure for water?
a)
A
b)
B
c)
C
83.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
84.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
85.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
86.

Which of the following compounds has only single bonds?

a)

I only

b)

II only

c)

III only

d)

I and III

e)

III and IV

87.
Which of the following is the correct Lewis structure for CH2O?
a)
Option A
b)
Option B
c)
Option C
d)
Option D
88.

Which atom will never be in the middle of a Lewis Dot structure?

a)

N

b)

C

c)

H

d)

P

89.
 A lone pair is defined as
a)
A pair of bonding electrons
b)
One non-bonding electron
c)
A pair of non-bonding electrons
d)
A pair of electrons on the central atom
90.

Hydrogen being an exception to the octet rule, needs _____ electrons in its outer energy level to be stable.

a)

4

b)

6

c)

8

d)

2

91.

A covalent bond is

a)

a bond that shares electrons metallicaly

b)

A bond that shares electrons between non metals

c)

Metalloids bonding

d)

metals and nonmetals bonding

92.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
93.

When drawing Lewis structures, only __________ electrons are used.

a)

inner shell

b)

core

c)

valence

d)

stable

94.
Which of the following is the correct Lewis structure for CH2O?
a)
Option A
b)
Option B
c)
Option C
d)
Option D
95.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

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