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WorksheetsCh. 3: Atoms & The Periodic Table
Total questions: 75
Worksheet time: 1hrs 9mins
Name
Class
Date
1.
Which scientist listed below wrote a paper that became known as the "Modern Atomic Theory"?
a)
Aristotle
b)
J.J Thomson
c)
Dalton
d)
Rutherford
2.
What is an atom?
a)
giant object
b)
building block of matter
c)
molecule
d)
compound
3.
What 2 subatomic particles are in the nucleus?
a)
protons & electrons
b)
electrons & neutrons
c)
protons & neutrons
d)
electrons & neutrinos
4.
What is the charge of a proton?
a)
positive
b)
negative
c)
neutral
5.
What is the charge of a neutron?
a)
positive
b)
negative
c)
neutral
6.
What is the charge of an electron?
a)
positive
b)
negative
c)
neutral
7.
What is the overall charge of most atoms?
a)
positive
b)
negative
c)
neutral
8.
Where are valence electrons?
a)
nucleus
b)
no where
c)
innermost ring
d)
outermost ring
9.
Which 2 subatomic particles have the same mass (in amu)?
a)
protons & neutrons
b)
protons & electrons
c)
electrons & neutrons
d)
none are equal
10.
What subatomic particle identifies an atom?
a)
protons
b)
neutrons
c)
electrons
d)
neutrinos
11.
Where is most of the mass of an atom located?
a)
empty space
b)
there is no mass
c)
electron cloud
d)
nucleus
12.
How many protons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
10
c)
2
d)
18
13.
How many neutrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
25
c)
2
d)
18
14.
How many electrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
45
c)
18
d)
2
15.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
16.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
17.
What is the atomic mass (rounded to the nearest whole number) of this element
a)
196
b)
196.95
c)
197
d)
79
18.
How many protons does an Aluminum atom have? (use the picture to help you)
a)
27
b)
13
c)
14
d)
40
19.
How many neutrons does a sodium atom have?
a)
23
b)
11
c)
12
d)
34
20.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
21.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
22.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
23.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
24.
The symbol for Carbon is
a)
6
b)
12.011
c)
C
d)
Ca
25.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
26.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
27.
What are the 3 subatomic 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
28.
A proton has approximately the same mass as a(n) _______________.
a)
straight pin
b)
quark
c)
electron
d)
neutron
29.
Which subatomic particle has a negative charge in the atom?
a)
proton
b)
neutron
c)
electron
d)
quark
30.
A ___________ is an arrangement of elements in columns
a)
columns
b)
rows
c)
periodic table
d)
electron shell
31.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
32.
The yellow atoms are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
33.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
34.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
35.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
36.
The properties of an element can be predicted from...
a)
color
b)
location on Periodic Table
c)
educated guess
d)
atomic number
37.
In what section would Transition Metals be found?
a)
orange
b)
light blue
c)
blue
d)
white
38.
Which section are the metals in?
a)
dark blue
b)
light blue
c)
purple
d)
pink
39.
Where is most of the volume of an atom located?
a)
empty space
b)
there is no mass
c)
electron cloud
d)
nucleus
40.
What is the overall charge of the electron cloud?
a)
positive
b)
negative
c)
neutral
41.
What is the overall charge of the nucleus?
a)
positive
b)
negative
c)
neutral
42.
Using the mass from the periodic table, how would you calculate the number of neutrons?
a)
protons x 2
b)
protons divided by 2
c)
mass + protons
d)
mass - protons
43.
How many neutrons in:
Calcium - 45
Calcium - 45
a)
45
b)
20
c)
65
d)
25
44.
How many protons in Sulfur - 35?
a)
35
b)
16
c)
51
d)
19
45.
What is the mass of Carbon - 14?
a)
14
b)
6
c)
7
d)
8
46.
The word “atom” comes from the Greek “atomos” meaning …
a)
Invisible
b)
Tiny
c)
Indivisible
d)
Indestructable
47.
Dalton’s atomic theory says that all atoms of one element are the same.
a)
True
b)
False
48.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
49.
What is the atomic number for an element with twelve protons?
a)
2
b)
12
c)
24
d)
6
50.
Which particle is not found in the nucleus
a)
proton
b)
neutron
c)
electron
51.
The atomic number is the number of ________ found in the nucleus.
a)
protons
b)
neutrons
52.
The atomic number of oxygen
a)
4
b)
8
c)
6
d)
2
53.
The atomic number of aluminum
a)
10
b)
12
c)
14
d)
13
54.
The number of protons in a helium atom is
a)
2
b)
4
c)
8
d)
1
55.
The number of protons in a Copper atom
a)
22
b)
28
c)
27
d)
29
56.
How many electrons can the first energy level hold?
a)
2
b)
8
c)
18
d)
32
57.
Which subatomic particle is responsible for chemical reactions?
a)
Protons
b)
Neutrons
c)
Electrons
d)
Quarks
58.
Which is responsible for most of the atom's volume?
a)
The nucleus
b)
Electron cloud
59.
____ + ____ = atom's mass
a)
Protons + Neutrons
b)
Protons + Electrons
c)
Neutrons + Electrons
d)
Electrons + Quarks
60.
1. An example of elements from period 3 that have the same number of electron shell
a)
Hydrogen and Oxygen
b)
Sodium and Potassium
c)
Sodium and Magnesium
d)
Helium and Hydrogen
61.
1. Vertical columns of the periodic table are called
a)
rows
b)
groups
c)
periods
d)
atoms
62.
Horizontal rows of periodic table are called:
a)
lines
b)
families
c)
groups
d)
periods
63.
The name of the chemist who organized the chemical elements in a periodic table is
a)
Lavoisier
b)
Mosley
c)
Mendeleev
d)
Newton
64.
Tritium is a hydrogen atom that has 2 neutrons while deuterium is a hydrogen atom that has 1 neutron. Tritium and deuterium are called
a)
Ions
b)
Isotopes
c)
Protons
d)
Electrons
65.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
66.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
67.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
68.
Isotopes are elements with a different amount of
a)
protons
b)
neutrons
c)
electrons
d)
atoms
69.
an element will always have the same number of
a)
neutrons
b)
protons
c)
isotopes
d)
atoms
70.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
71.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
72.
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
73.
Atoms of the same element must always have the same number of _________
a)
electrons
b)
neutrons
c)
isotopes
d)
protons
74.
The order of elements in the periodic table is based on
a)
the number of protons in the nucleus
b)
the electric charge of the nucleus
c)
the number of neutrons in the nucleus
d)
atomic mass
75.
Ionization refers to the pro
a)
dddd
b)
finish
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