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Unit 1 Retest Review

Total questions: 82

Worksheet time: 3hrs 37mins

Name
Class
Date
1.
Subatomic particle with a charge of 0
a)
neutron
b)
proton
c)
electron
d)
quark
2.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

3.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
4.

The smallest particle of an element.

a)

Element

b)

Molecule

c)

Atom

5.

These are found in the nucleus and have a neutral charge.

a)

proton

b)

electron

c)

neutron

6.
These will determine what element an atom is. 
a)
number of neutrons
b)
number of electrons
c)
number of atoms 
d)
number of protons 
7.

The number 16 for the atomic element sulfur is the

a)

ionic number

b)

isotope

c)

atomic mass

d)

atomic number

8.

How many protons does sulfur have?

a)

32

b)

16

c)

48

d)

12

9.

How many electrons does sulfur have

a)

16

b)

32

c)

48

d)

12

10.

In an atom, the number of protons is equal to the number of ____________.

a)

energy levels

b)

neutrons

c)

neurons

d)

electrons

11.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
12.
An atom of the element with atomic number 6 always has _____.
a)
six protons in its nucleus
b)
an atomic mass of six
c)
more than six neutrons
d)
six electron clouds
13.
What are subatomic particles? 
a)
the nucleus 
b)
electron cloud
c)
positive charge
d)
electrons, protons, and neutrons
14.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
15.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
16.

How many neutrons does a Hydrogen atom have?

a)

1

b)

2

c)

3

d)

0

17.

How many electrons does an Iodine atom have?

a)

53

b)

126

c)

73

d)

179

18.

How many neutrons does an Oxygen atom have?

a)

8

b)

16

c)

24

d)

7.999

19.

How many electrons does a Copper atom have?

a)

63

b)

29

c)

92

d)

34

20.
How many protons are in Beryllium?
a)
4
b)
9
c)
5
d)
2
21.

What were John Dalton three contributions to atomic history?

a)

Created the atomic theory

b)

Discovered that the atom is mostly empty space

c)

Believed that atoms of a given element are identical

d)

Hypothesized that the atom is a tiny, hard sphere

e)

Believed that the universe was made of tiny "uncuttable" particles

22.

Who was the first contributor to the atomic theory?

a)

John Dalton

b)

Ernest Rutherford

c)

JJ Thompson

d)

Democritus

e)

Neils Bohr

23.

What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?

a)

Neils Bohr, Ernest Rutherford, JJ Thomson, John Dalton, & Democritus

b)

JJ Thomson, John Dalton, Neils Bohr, Ernest Rutherford, & Democritus

c)

Democritus, John Dalton, JJ Thomson, Ernest Rutherford, and Neils Bohr

d)

John Dalton, Neils Bohr, JJ Thomson, Democritus, & Ernest Rutherford

24.

What were J. J. Thomson's three contributions to the atomic theory?

a)

Discovered the electron

b)

Discovered the nucleus -did the gold foil experiment

c)

Used the cathode ray tube in his discovery

d)

Created a model of the atom with electrons moving around the nucleus in fixed orbits

e)

Created the "plum pudding" model of the atom

25.

What are two facts about Democritus's?

a)

Greek philosopher

b)

Created the atomic theory

c)

Used the cathode ray tube in his discovery

d)

Believed that the universe was made of tiny "uncuttable" particles

e)

Discovered that the atom is mostly empty space

26.

What is Neils Bohr's contribution to the atomic theory?

a)

Created the atomic theory

b)

Created a model of the atom with electrons moving around the nucleus in a fixed orbits

c)

Discovered that the proton had a positive charge

d)

Believed that atoms of a given element are identical

e)

Discovered the electron

27.

What were Ernest Rutherford's three contributions to atomic theory?

a)

Discovered that the atom is mostly empty space

b)

Discovered the nucleus- did the gold foil experiment

c)

Used the cathode ray tube in his discovery

d)

Discovered the electron

e)

Discovered that the proton had a positive charge

28.
Which model of the atom proposed that atoms were positive spheres with negative electrons in them?
a)
Heliocentric Model
b)
Solid Sphere Model
c)
Plum Pudding Model
d)
Planetary Model
29.
Which scientist saw the atom as a solid sphere?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
30.
Who came up with this model of an atom?
a)
J.J. Thompson
b)
Ernest Rutherford
c)
Neils Bohr
d)
James Chadwick
31.
Who's model is this?
a)
Thomson
b)
Rutherford
c)
Democritus
d)
Bohr
32.
Who came up with this model?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
33.
Proposed electrons move around the nucleus in shells
a)
James Chadwick
b)
J.J. Thomson
c)
Niels Bohr
d)
Ernest Rutherford
34.
In Dalton's Atomic Theory, all elements consist of __________ that cannot be divided.
a)
Atoms
b)
Parts
c)
Molecules
d)
Hydrogen
35.
In the Thomson Model, he discovered the existence of what particle?
a)
Electrons
b)
Protons
c)
Neutrons
d)
Quarks
36.
Rutherford’s experiment determined that the nucleus of an atom is tiny, dense and  ______ charged. 
a)
neutrally
b)
negatively
c)
positively
37.
Democritus believed that the smallest particles, were atomos, the Greek word for 
a)
small
b)
uncut or indivisible
c)
basic
38.

Mass is neither created nor destroyed during chemical reactions or physical changes.

a)

Law of multiple proportions

b)

law of definite proportions

c)

law of scientific theory

d)

law of conservation of mass

39.

states that, regardless of the amount, a compound is always composed of the same elements in the same proportion by mass

a)

law of definite proportions

b)

law of conservation of mass

c)

law of multiple proportions

d)

periodic table

40.
the smallest particle of an element that retains the chemical properties of that element
a)
ion
b)
isotope
c)
atom
d)
element
41.
True or False? John Dalton believed that moving electrons exist in electron clouds around the nucleus. 
a)
False
b)
True 
42.
Who proposed that the atom consists mostly of empty space?
a)
Bohr
b)
Dalton
c)
Rutherford
d)
Chadwick
43.
Who believed that electrons were scattered amongst positively charged material.
a)
JJ Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
Niels Bohr
44.

The identity of an atom is determined by the number of

a)

Protons

b)

Neutrons

c)

Electrons

d)

Isotopes

45.

The particle(s) found inside the nucleus are called:

a)

Protons

b)

Neutrons

c)

Protons + Neutrons

d)

Protons + Electrons

46.

The number of protons and neutrons combined is called the

a)

Mass number

b)

Atomic number

c)

Charge

d)

Periodic number

47.

The number of protons is also called the

a)

Atomic number

b)

Mass number

c)

Charge

d)

Ion number

48.

The number of protons found in a sulfur atom is

a)

16

b)

32

c)

8

d)

25

49.

The number of neutrons found in an aluminum-27 atom is

a)

27

b)

13

c)

14

d)

10

50.

The number of electrons found in a neutral zinc atom are

a)

30

b)

29

c)

65

d)

0

51.

Give the symbols for 92 protons, 145 neutrons

a)

Uranium - 92

b)

Uranium - 145

c)

Uranium - 237

d)

Uranium - 238

52.

Give the symbol for 8 protons, 10 neutrons

a)

Oxygen - 8

b)

Oxygen - 18

c)

Oxygen - 10

d)

Oxygen - 16

53.

What is the symbol for 22 protons, 23 neutrons

a)

Titanium - 22

b)

Titanium - 45

c)

Vanadium - 23

d)

Vanadium - 45

54.

What is the symbol for 18 protons, 22 neutrons

a)

Argon - 18

b)

Argon - 40

c)

Titanium - 22

d)

Titanium - 40

55.

How many protons are in the following symbol

a)

10

b)

5

c)

15

d)

25

56.

How many neutrons are in the following symbol?

a)

7

b)

8

c)

15

d)

10

57.

What is mass number for the following symbol?

a)

165

b)

66

c)

99

d)

100

58.

How many neutrons are in this symbol?

a)

151

b)

62

c)

89

d)

100

59.

How many protons are in the following symbol?

a)

35

b)

17

c)

18

d)

30

60.

What element would have this symbol?

a)

Neptunium (Np)

b)

Niobium (Nb)

c)

Tellurium (Te)

d)

Carbon (C)

61.

What is the correct name for this symbol?

a)

Platinum - 195

b)

Platinum - 78

c)

Platinum - 117

d)

Platinum - 190

62.
Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...
a)
ion
b)
mixture
c)
isotope
d)
neutral atom
63.
The atomic number is equal to _.
a)
the number of protons and electrons
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons neutrons and electrons
64.
What is the charge on a lithium atom that looses 1 electron?
a)
+1
b)
0
c)
-1
d)
-2
65.
Is the element shown in this image an ion, isotope or normal atom?
a)
atom
b)
isotope
c)
cation (+ ion)
d)
anion (- ion)
66.
How many protons does this isotope of titanium have? Hint titanium has an atomic number of 22.
a)
48
b)
22
c)
26
d)
70
67.
What element is this?  What is the mass number of this atom?
a)
sodium, 23
b)
magnesium, 23
c)
magnesium, 12
d)
sodium, 11
68.
Which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
69.
What is the atomic number of Fe? (click to see image)
a)
26
b)
55.845
c)
56
d)
None of these
70.
How many neutrons does B (Boron) contain?
a)
5
b)
11
c)
6
d)
10.811
71.
Carbon has an atomic number of 6 and an atomic mass of 12. Which elements are considered isotopes of carbon?
a)
Carbon-12
b)
Carbon-13
c)
Carbon-14
d)
Both Carbon-13 and Carbon-14
72.
How many neutrons does Lithium have (atomic mass = 6.94)
a)
3
b)
4
c)
6.94
d)
24.94
73.

An atom with the same number of protons and electrons (no charge) and the expected atomic mass or number of neutrons from the periodic table.

a)

Neutral/Normal Atom

b)

Ion

c)

Isotope

74.

An atom that has gained or lost electrons in an attempt to become stable/bond with another atom.

a)

Normal/Neutral Atom

b)

Ion

c)

Isotope

75.

A negatively charged ion that has gained electrons to satisfy the octet rule (metals do this)

a)

Anion

b)

Cation

c)

Neutral Atom

d)

Isotope

76.

A positively charged ion that has lost electrons to satisfy the octet rule (non-metals do this)

a)

Anion

b)

Cation

c)

Neutral Atom

d)

Isotope

77.

Atoms of the same element that have different mass than expected because they have a different number of neutrons.

a)

Neutral Atom

b)

Ion

c)

Isotope

d)

Cation

78.

If an atom has 9 protons and 10 electrons it has a charge of ____.

a)

0

b)

-1

c)

+1

d)

-2

79.

If an atom has 4 protons and 2 electrons it has a charge of ____.

a)

0

b)

-2

c)

+2

d)

+1

80.

If an atom has a charge of +3 and an atomic number of 5 it should have _______ electrons.

a)

1

b)

2

c)

3

d)

4

81.

If an atom has a charge of -2 and an atomic number of 16 it should have _______ electrons.

a)

14

b)

16

c)

18

d)

20

82.

If an atom has a charge of 0 (neutral) and an atomic number of 8 it should have ____ electrons.

a)

0

b)

8

c)

7

d)

9

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