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Unit 3 Midterm Review

Total questions: 118

Worksheet time: 2hrs 30mins

Name
Class
Date
1.

Which scientist was the first person responsible for proposing the idea of atoms?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

2.

Which scientist was the first person responsible for proposing the discovery of the electron?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

3.

Which scientist was the first person responsible for proposing the discovery of the nucleus?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

4.

Which scientist claimed that the atom was a small, dense, solid sphere?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

5.

Which scientist's model is referred to as the Plum Pudding Model?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

6.

Which scientist's model is referred to as the Planetary model?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

7.

Which scientist proposed the idea that the electrons orbited the nucleus on fixed paths with designated energies?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

8.

Which scientist proposed that the atom was indivisible using the word "atomos"?

a)

Democritus

b)

John Dalton

c)

Ernest Rutherford

d)

J.J. Thomson

e)

Niels Bohr

9.

Which model of the atom is the most up to date model?

a)

The Billiard Ball Model

b)

The Plum Pudding Model

c)

The Planetary Model

d)

The Quantum Mechanical Model

e)

The Nuclear Model

10.

Which model of the atom describes the location of electrons as probable within a dense "cloud" surrounding the nucleus of an atom?

a)

The Billiard Ball Model

b)

The Plum Pudding Model

c)

The Planetary Model

d)

The Quantum Mechanical Model

e)

The Nuclear Model

11.

What is the atomic number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons in the energy levels

12.

What is the mass number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons and electrons in the atom

13.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

14.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

15.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
16.
In order for an atom to be neutral what has to be true?
a)
The atom has more protons than neutrons
b)
The atom has more neutrons than protons
c)
The atom has the same number of protons and neutrons
d)
The atom has the same number of protons and electrons
17.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
18.

What does the 6 represent?

a)

Atomic mass

b)

atomic number

c)

chemical symbol

d)

element name

19.
How is the number of neutrons in the nucleus of an atom calculated?
a)
Add the number of e- and p+ together
b)
Subtract the number of e- from p+
c)
Subtract the number of p+ from the mass number
d)
Add the mass number to the number of e-
20.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
21.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
22.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
23.

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

a)

20

b)

10

c)

35

d)

25

24.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

25.
The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.
a)
9
b)
10
c)
19
d)
28
26.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
27.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
28.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
29.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
30.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
31.
What quantities vary between isotopes of an element?
a)
protons, electrons, and atomic mass
b)
protons, electrons, and atomic number
c)
neutrons and electrons
d)
neutrons and atomic mass
32.
which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
33.
How many neutrons in C-14?
a)
6
b)
7
c)
14
d)
8
34.
Isotopes are atoms of the same element with different #’s of __________ & therefore different __________.
a)
n0 ;  atomic #’s
b)
p+ ; atomic #’s
c)
e- ; atomic masses
d)
n0 ; atomic masses
35.
How many neutrons does an atom of the isotope Neon-22 have?
a)
12
b)
10
c)
22
d)
20
36.
Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208.  The average atomic mass of lead is 207.2.  Which isotope of lead is likely to be the most abundant.
a)
204
b)
206
c)
207
d)
208
37.
Two isotopes of carbon are carbon-12 and carbon-14.  These isotopes differ from one another by two protons.
a)
true
b)
false
38.
If the number of electrons in an atom changes you make a(n) __________________.
a)
ion
b)
isotope
c)
new element
d)
isomer
39.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
40.
How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
a)
34
b)
36
c)
2
d)
40
41.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
42.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
43.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
44.

What is the charge of a sodium ion?

a)

+2

b)

+1

c)

-1

d)

-2

45.
Group 17 always has ions with a charge of 
a)
+1
b)
+2
c)
-1
d)
-2
46.
What charge will an Oxygen ion have? 
a)
+1
b)
-1
c)
+2
d)
-2
47.
If an element has 3 valence electrons, what charge will likely form on its ion ?
a)
+3
b)
+5
c)
-3
d)
-5
48.
Which of the following has a -3 charge?
a)
Boron
b)
Fluorine
c)
Nitrogen
d)
Neon
49.
charge of beryllium ion
a)
-2
b)
-1
c)
+1
d)
+2
50.
Which of the following has a -1 charge? 
a)
Aluminum
b)
Bromine
c)
Calcium
d)
Potassium
51.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
52.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
53.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
54.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
55.
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?
a)
74.92 amu
b)
24.97 amu
c)
75.01 amu
d)
74.51 amu
56.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
57.

Calculate the average atomic mass of the element iron (Fe) using the following data:

[Isotope / % abundance]

[Iron 54 / 6% ] [Iron 56 / 92% ] [ Iron 57 / 2% ]

a)

53.7 amu

b)

54.9 amu

c)

5592.0 amu

d)

55.9 amu

58.
An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to
a)
2 amu
b)
3 amu
c)
4 amu
d)
5 amu
59.
Which of the following is a chemical property?
a)
Density
b)
Temperature
c)
Reactivity with HCl
d)
Mass
60.
Which of the following is a physical property?
a)
Flammability
b)
Reactivity with H2O2
c)
Color
d)
Toxicity
61.
Iodine (I2) crystals would be expected to be ______________ because it is a ___________________.
a)
shiny, metal
b)
shiny, nonmetal
c)
malleable, metal
d)
brittle, nonmetal
62.
Nickel would be expected to be ____________________ because it is a __________________.
a)
conductive, metal
b)
conductive, nonmetal
c)
nonconductive, metal
d)
nonconductive, nonmetal
63.
Boiling water is a:
a)
chemical change
b)
physical change
64.
Digestion is a:
a)
chemical change
b)
physical change
65.
Tellurium (Te) may be ________________ and therefore considered a __________________.
a)
malleable and brittle, metalloid
b)
shiny and dull, metalloid
c)
conductive and nonreactive with HCl/CuCl2, metalloid
d)
shiny and brittle, metal
66.

What happens to the atomic numbers as you move from left to right on the periodic table?

a)

Increase

b)

Decrease

c)

Stay the same

d)

Nothing

67.

Which of the following elements is most likely to have similar properties to those of sodium (Na)?

a)

Magnesium (Mg)

b)

Sulfur (S)

c)

Francium (Fr)

d)

Titanium (Ti)

68.

If an element has 117 protons which group will it be in on the periodic table?

a)

1

b)

7

c)

11

d)

17

69.

Which element is located in group 3?

a)

Yttrium (Y)

b)

Carbon (C)

c)

Sodium (Na)

d)

Lithium (Li)

70.

Which element is located in period 4?

a)

Zirconium (Zr)

b)

Silicon (Si)

c)

Beryllium (Be)

d)

Iron (Fe)

71.

Two elements that have similar physical and chemical properties are most likely in the same...

a)

period

b)

row

c)

group

72.

Which element is most likely to have three electron energy levels?

a)

Argon (Ar)

b)

Lithium (Li)

c)

Boron (B)

d)

Europium (Eu)

73.

Which element is most likely to have six electrons in its 4th energy level?

a)

Oxygen (O)

b)

Selenium (Se)

c)

Krypton (Kr)

d)

Potassium (K)

74.

In which group would an element that is not reactive most likely be located?

a)

1

b)

2

c)

16

d)

18

75.

In which group would an element that is very reactive most likely be located?

a)

1

b)

5

c)

15

d)

18

76.

In which group would an element that is a gas most likely be located?

a)

1

b)

3

c)

12

d)

18

77.

Which of the following elements is most likely a poor conductor of electricity?

a)

Beryllium (Be)

b)

Gold (Au)

c)

Phosphorus (P)

d)

Copper (Cu)

78.

elements that are shiny, malleable, ductile, and good conductors of heat and electricity

a)

metals

b)

nonmetals

c)

metalloids

d)

semiconductors

79.

metals that can be hammered and rolled into sheets

a)

malleable

b)

ductile

c)

metallic luster

d)

ions

80.

metals that can be drawn into wires

a)

malleable

b)

ductile

c)

metallic luster

d)

ions

81.

Which family is found to the left of the stair step line?

a)

metals

b)

nonmetals

c)

metalloids

d)

semiconductors

82.

In ionic bonding, metals become the ___________ ion

a)

postive

b)

negative

83.

In ionic bonding, nonmetals become the ______ ion

a)

postive

b)

negative

84.

charged particles with more or fewer electrons than the neutral atom

a)

metallic bonding

b)

ions

c)

ionic bond

d)

isotopes

85.

Which elements are shiny?

a)

metals only

b)

nonmetals only

c)

metals and nonmetals

d)

metals and MAYBE metalloids

86.

Which elements are to the right of the zig zag?

a)

metals

b)

nonmetals

c)

metalloids

87.

Sulfur is considered:

a)

malleable

b)

brittle

c)

ductile

d)

a good conductor

88.

How did you find out if an element is a good conductor?

a)

it lit up a light bulb

b)

hit it with a hammer

c)

bubbled in the presence of acid

d)

turned black

89.

copper can be used to make statues like the statue of liberty

a)

therefore copper is malleable

b)

therefore copper is ductile

c)

therefore copper is shiny

d)

therefore copper is a conductor

90.

Which elements are colored red?

a)

nonmetals

b)

metals

c)

metalloids

91.
Which one of these is not a noble gas?
a)
Helium
b)
Radon
c)
Iodine
d)
Krypton
92.
What family is Sodium a part of?
a)
Transition Metals
b)
Halogens
c)
Alkali Metals
d)
Alkaline Earth Metals
93.
What family is Cadmium a part of?
a)
Noble Gases
b)
Metalloids
c)
Transition Metals
d)
Actinoids
94.
Silicon is a 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Halogen
95.
__________ would have some characteristics of metals and some characteristics of nonmetals.
a)
Gold
b)
Sodium
c)
Arsenic
d)
Bismuth
96.
Which element that starts with a B is an Alkaline Earth Metal?
a)
Barium
b)
Boron
c)
Bread
d)
Bromine
97.
What element is this?
a)
Silver
b)
Silicon
c)
Sulfur
d)
Selenium
98.

Which of the following elements is an alkali metal?

a)

calcium

b)

magnesium

c)

mercury

d)

sodium

99.

In Mendeleev's periodic table, elements in each column had similar

a)

atomic masses.

b)

properties.

c)

atomic numbers.

d)

symbols.

100.

The three main groups of elements are metals, nonmetals, and

a)

inert gases.

b)

alkali metals.

c)

radioactive isotopes.

d)

semiconductors/metalloids.

101.

Most elements are

a)

metals.

b)

nonmetals.

c)

metalloids.

d)

semiconductors.

102.

The order of elements in the modern periodic table is based on an element's

a)

atomic number.

b)

name.

c)

chemical symbol.

d)

atomic mass.

103.

Metals tend to be

a)

gases.

b)

dull.

c)

brittle.

d)

good conductors.

104.

Which group is very stable due to the fact that they have a full outermost energy level?

a)

alkali metals

b)

halogens

c)

alkaline-earth metals

d)

noble gases

105.

Which of the following is a property of group 18 elements?

a)

malleable

b)

brittleness

c)

high electrical conductivity

d)

unlikely to react with other elements

106.

Based on its location on the periodic table, which of these elements most likely has physical and chemical properties most similar to boron (B)?

a)

magnesium (Mg)

b)

aluminum (Al)

c)

neon (Ne)

d)

chlorine (Cl)

107.

Alkali metals are extremely reactive because they

a)

have every small atomic masses.

b)

are not solid at room temperature.

c)

have one valence electron that is easily removed to form a positive ion.

d)

have two valence electrons that form compounds with calcium and magnesium.

108.

Which atom has the largest atomic radius?

a)

potassium

b)

rubidium

c)

francium

d)

cesium

109.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
110.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
111.

Which statement correctly and completely identifies a trend?

a)

Atomic radius decreases across a period and increases down a group.

b)

Electronegativity decreases across a period and decreases down a group.

c)

Ionization energy increases across a period and increases down a group.

d)

Ionic radius increases across a period and increases down a group.

112.
Atomic radius generally increases as we move __________.  
a)
down a group and from right to left across a period 
b)
up a group and from left to right across a period 
c)
down a group and from left to right across a period 
d)
up a group and from right to left across a period 
113.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
114.
Order the following in increasing atomic radii: 
Ra, Be, Ca, Rb, H
a)
Ra, Be, Rb, H, Ca
b)
Rb, H, Ca, Be, Ra
c)
Ra, Rb, Ca, Be, H
d)
H, Be, Ca, Rb, Ra
115.
Which has the greater EN: 
N or C?
a)
C
b)
N
116.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
117.
The element with the largest electronegativity in the halogens is - 
a)
At
b)
F
c)
Cl
d)
Br
118.
The element with the lowest electronegativity in Period 3 is - 
a)
Na
b)
Cl
c)
Ar
d)
Mg

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