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Worksheets

Atoms

Total questions: 118

Worksheet time: 2hrs 38mins

Name
Class
Date
1.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
2.
How many electrons are in the outer shell of Chlorine (Cl)?
a)
1
b)
3
c)
6
d)
7
3.
How many Valence Electrons does Argon have?
a)
2
b)
3
c)
8
d)
18
4.
How many elements are in the Noble Gas family?
a)
24
b)
13
c)
6
d)
18
5.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
6.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
7.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
8.
"C" is the element symbol for which element?
a)
calcium
b)
carbon
c)
chlorine
d)
cadmium
9.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
10.
Which is a halogen?
a)
Fluorine
b)
Carbon
c)
Helium
d)
Lithium
11.
Which is a Halogen?
a)
Bromine
b)
Cobalt
c)
Iron
d)
Nickel
12.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
13.
What is the atomic mass (rounded to the nearest whole number) of this element
a)
196
b)
196.95
c)
197
d)
79
14.
How many protons does an Aluminum atom have? (use the picture to help you)
a)
27
b)
13
c)
14
d)
40
15.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
16.
How many atoms of Oxygen are in this compound?
a)
1
b)
2
c)
3
d)
4
17.
The chemical symbol for Helium is
a)
H
b)
Hg
c)
He
d)
O
18.
In which region would the most reactive elements be found? 
a)
1
b)
4
c)
5
d)
3
19.
One property of most nonmetals is that they are
a)
shiny
b)
poor conductors of electric current
c)
flattened when hit with a hammer
d)
solids a room temperature
20.
Elements in a family or group in the periodic table often share similar properties because...
a)
they look alike.
b)
they are found in the same place on Earth.
c)
they have the same physical state
d)
their atoms have the same number of electrons in their outer energy level
21.
All of the following are characteristics of metals EXCEPT...
a)
shiny.
b)
good conductors.
c)
ductile.
d)
brittle.
22.
T or F: Elements in the column farthest to the right are unreactive.
a)
True
b)
False
23.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
24.
Most of the mass of an atom is found it its _____.
a)
electron cloud
b)
nucleus
c)
atomic number
d)
empty space
25.
Which is an electron?
a)
A
b)
B
c)
C
26.
What are subatomic particles? 
a)
the nucleus 
b)
electron cloud
c)
positive charge
d)
electrons, protons, and neutrons
27.
Which type of subatomic particles have the LEAST amount of mass?
a)
protons
b)
electrons
c)
neutrons
d)
nucleus
28.
If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?
a)
positive
b)
negative
c)
neutral
d)
imaginary
29.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
30.
The symbol for Carbon is
a)
6
b)
12.011
c)
C
d)
Ca
31.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
32.
What is the atomic number for an element with twelve protons?
a)
2
b)
12
c)
24
d)
6
33.
What are elements that are unreactive?
a)
alkali metals
b)
halogens
c)
noble gases
d)
alkaline-earth metals
34.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
35.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
36.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
37.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
38.
Which particle is not found in the nucleus
a)
proton
b)
neutron
c)
electron
39.
The symbol of Nitrogen
a)
O
b)
N
c)
Ni
d)
Ne
40.
Hydrogen's atomic number
a)
4
b)
8
c)
1
d)
7
41.
The symbol for Sodium
a)
S
b)
So
c)
Na
d)
Sm
42.
What is the charge of an electron?
a)
positive
b)
negative
c)
neutral
43.
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
44.
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
45.
a)
2
b)
8
c)
3
d)
13
46.
a)
2
b)
5
c)
10
d)
15
47.
a)
4
b)
6
c)
8
d)
10
48.
_______ are the ROWS on the periodic table.
a)
Families
b)
Groups
c)
Periods
d)
Elements
49.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
50.
Identify the shaded portion.
a)
metals
b)
nonmetals
c)
transition metals
d)
metalloids
51.
What does C6H12Ostand for?
a)
Milk
b)
Carbon
c)
Glucose
d)
Candy
52.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
53.
What does the atomic mass tell you? 
a)
Basically,the number of electrons and protons
b)
The number of neutrons
c)
Basically, the number of protons and neutrons
d)
The number of protons.
54.

What period is Lead (Pb) in?

a)

6

b)

4

c)

Metals

d)

4A

55.

What Element is in period 4, group 5A?

a)

Antimony

b)

Arsenic

c)

Tin

d)

Germanium

56.

Why are halogens so reactive?

a)

They want to get rid of their only valance electron

b)

They only need one more electron

c)

They are non reactive, they have a full shell

57.

What are valence electrons?

a)

Any of an atom's electrons

b)

Electrons located on the first energy level

c)

Electrons not attached to any atom

d)

electrons located on the outer energy level

58.

Which color on the image of the periodic table corresponds with the noble gases.

a)

red

b)

black

c)

blue

d)

orange

59.
Which particle has a positive charge?
a)
electron
b)
orbital
c)
proton
d)
neutron
60.
Choose the particle that has no charge.
a)
nucleus
b)
neutron
c)
proton
d)
electron
61.
What is the mass of a proton and a neutron?
a)
1amu
b)
2grams
c)
13amu
d)
10cm
62.
An electron has a _____ charge.
a)
negative
b)
positive
c)
neutral
63.
Describe an Electron Cloud?
a)
the mist outside of an atom
b)
home of the protons
c)
where electrons are located
d)
nucleus
64.
What are valence electrons?
a)
electrons on the first orbital always
b)
nucleus
c)
the outermost shell
d)
the number of electrons on the outermost orbital
65.
Which particles make up the nucleus of an atom?
a)
protons and neutrons
b)
electrons and protons
c)
electrons, protons, and neutrons
d)
electrons and neutrons
66.
The particles of the atom you can find by knowing the atomic number.
a)
neutrons
b)
protons and electrons
c)
protons and neutrons
d)
atomic mass
67.
The subatomic particle that determines the identity of an element.
a)
neutron
b)
proton
c)
electron
d)
outer shell
68.
What charge does the nucleus have and why?
a)
positive - the neutrons do not have a charge
b)
positive - the neutrons and protons are positively charged particles
c)
neutral - the neutral charge dominates the positive charge
d)
neutral - electrons cancel out the positive charge of the atom
69.
What is the mass number and name of an element with 8 protons and 8 neutrons?
a)
16 - Carbon
b)
16 - Oxygen
c)
24 - Oxygen
d)
8 - Neon
70.
An element with a mass number of 10 and an atomic number of 6 has how many protons?
a)
5
b)
8
c)
6
d)
10
71.
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
72.
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
a)
20
b)
10
c)
5
d)
25
73.
Matter that cannot be broken down into a simpler substance – building blocks of life.
a)
neutron
b)
atom
c)
electron
d)
quarks
74.
An atom has 13 protons, 15 neutrons and ___ electrons what is its mass number?
a)
13
b)
26
c)
28
d)
15
75.
Most of the mass of an atom is contained here.
a)
electron orbitals 
b)
nucleus
c)
shells
d)
atomic #
76.
What is the difference between the atomic mass and the mass number?
a)
the atomic mass is always a whole number
b)
the atomic mass equals the atomic #
c)
mass number is the rounded atomic mass - always a whole number
d)
electrons
77.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
78.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
79.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
80.
"C" is the element symbol for which element?
a)
calcium
b)
carbon
c)
chlorine
d)
cadmium
81.
What are electrons?
a)
Negatively charged particles
b)
Neutrally charged particles
c)
Positively charged particles
d)
Uncharged particles
82.
The mass of one proton is equal to the mass of one...
a)
neutron
b)
electron
83.
The mass of one proton is greater than the mass of one...
a)
neutron
b)
electron
84.
The mass of about 1,836 electrons is equal to the mass of one...
a)
proton
b)
neutron
c)
a proton or a neutron
d)
neither a proton nor a neutron
85.
All of the mass of an atom comes from what location?
a)
nucleus
b)
electron cloud
86.
What subatomic particle has no effect on the mass of the atom? 
a)
proton
b)
neutron
c)
electron
87.
What is the atomic number of the atom pictured? 
a)
9
b)
10
c)
18
d)
19
88.
What is the element name of the atom pictured? 
a)
Fluorine
b)
Neon
c)
Argon
d)
Potassium
89.
What is the atomic number of the atom pictured? 
a)
11
b)
12
c)
22
d)
23
90.
What is the element name of the atom pictured? 
a)
Sodium
b)
Magnesium
c)
Titanium
d)
Vanadium
91.
How many electrons are in the atom pictured? 
a)
1
b)
2
c)
3
d)
0
92.
If the atom pictured is neutral, what element would it be? 
a)
Lithium
b)
Helium
c)
Beryllium
d)
Hydrogen
93.
True or False - Protons and Neutrons have about the same mass.
a)
True - They have about the same mass
b)
False - They do not have about the same mass
94.
Where is the nucleus located in an atom?
a)
Near the electron shells/levels
b)
Near the center of an atom
95.

Is the ability of matter to combine chemically with other substances.

a)

Reactivity

b)

Proton

c)

Subatomic Partices

d)

Electrons

96.

Refers to anything smaller than an atom. Examples: Electrons, protons and neutrons.

a)

Electron cloud

b)

Element

c)

Subatomic Particles

d)

Protons

97.

Which of the following determines the identity of an element?

a)

number of protons

b)

atomic mass

c)

number of neutrons

d)

number of shells

98.

How many valence electrons in Flourine (F)?

a)

3

b)

6

c)

7

d)

8

99.
The subatomic particle that determines the identity of an element.
a)
neutron
b)
proton
c)
electron
d)
outer shell
100.

The smallest particle of an element or matter

a)

Proton

b)

Atom

c)

Electron

d)

Electron Cloud

101.

The central part of an atom that is made up of neutrons and protons

a)

Protons

b)

Neutrons

c)

Nucleus

d)

Reactivity

102.

The region around the nucleus where the electrons may be found.

a)

Electron Cloud

b)

Reactivity

c)

Neutron

d)

Atom

103.

Electron in the outermost energy level of an atom.

a)

Valence Electrons

b)

Protons

c)

Neutrons

d)

Reactivity

104.

Positivley charged particle located in the nucleus of an atom.

a)

Electrons

b)

Protons

c)

Neutrons

d)

Subatomic Particles

105.

Negatively charged particle found outside the nucleus of an atom

a)

Electrons

b)

Protons

c)

Neutrons

d)

Electron Cloud

106.

A subatomic particle of about the same mass as a proton but has no (zero/neutral) electric charge.

a)

Neutron

b)

Proton

c)

Electron

d)

Electron Cloud

107.

This particle determines an elements' identity (what its called).

a)

electron

b)

proton

c)

neutron

d)

valence shell

108.

What are the maximum number of electrons that go on the first 3 energy levels?

a)

2,4,16

b)

2,8,8

c)

4,8,12

d)

3,4,6

109.

Elements on the periodic table increase by...

a)

atomic mass

b)

size

c)

mass number

d)

atomic number

110.

An atom that loses or gains an electron is called an

a)

compound.

b)

ion.

c)

element.

d)

quark.

111.

What is the chemical symbol for sodium?

a)

Na

b)

So

c)

NaCl

d)

S

112.

To calculate the number of subatomic particles in an atom we use _____________.

a)

SCHNOPS

b)

MAN APE

c)

APE MAN

d)

ROY G BIV

113.

How many valence electrons does Oxygen have?

a)

8

b)

16

c)

33

d)

6

114.

Organic substances have this element

a)

O

b)

C

c)

Al

d)

F

115.

How many neutron are in the atom "K"?

a)

7

b)

2

c)

39

d)

20

116.

What is the mass number of "F"

a)

9

b)

10

c)

17

d)

19

117.

What is the mass number of the atom pictured?

a)

11

b)

12

c)

22

d)

23

118.

What is the atomic mass of the atom pictured?

a)

10

b)

18

c)

18.9984

d)

19