WorksheetsProperties of Atoms and the Periodic Table
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
The horizontal rows of elements are called
a)
periods
b)
groups
c)
families
d)
metalloids
2.
An average of the masses of all the isotopes that occur in nature for an element
a)
average neutrons
b)
atomic mass
c)
atomic number
d)
average atomic mass
3.
vertical columns of elements are called
a)
groups
b)
periods
c)
families
d)
transition metals
4.
The atomic number represents the number of __________
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
5.
Protons and Neutrons can be subdivided into _________, but electrons cannot
a)
elements
b)
quarks
c)
isotopes
d)
groups
6.
The nucleus contains which of the following?
a)
neutrons only
b)
protons only
c)
protons and electrons
d)
protons and neutrons
7.
The total number of neutrons and protons in the atom is the
a)
atomic number
b)
atomic mass
c)
isotope
d)
quarks
8.
Isotopes of the same element have different number of
a)
neutrons
b)
protons
c)
electrons
d)
quarks
9.
Elements found on the left side of the periodic table are the
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
10.
Another name for the semimetals
a)
quarks
b)
isotopes
c)
metalloids
d)
transition metals
11.
particles with an electric charge of 1-
a)
protons
b)
electrons
c)
neutrons
d)
quarks
12.
Dmitri Mendeleev organized the periodic table by increasing
a)
atomic number
b)
atomic mass
c)
number of electrons
d)
number of protons
13.
the region around the nucleus occupied by electrons
a)
electron cloud
b)
electron dot diagram
c)
quarks
d)
isotopes
14.
What is the machine used to generate the forces needed to break apart protons and neutrons?
a)
tevatron
b)
bubble chamber
c)
Quarks
d)
isotopes
15.
Which group is the least reactive?
a)
Lanthanides
b)
Alkali Metals
c)
group 17
d)
Noble Gases
16.
Elements on the right side of the table are the
a)
metals
b)
nonmetals
c)
metalloids
d)
transition metals
17.
The groups are numbered
a)
1-18
b)
1-7
c)
1-118
d)
the groups are not numbered
18.
How many energy levels are there?
a)
1
b)
4
c)
7
d)
32
19.
Elements in the same group have the same number of
a)
protons
b)
neutrons
c)
isotopes
d)
electrons in the outer energy level
20.
How many electrons are in the outer energy level?
a)
8
b)
2
c)
6
d)
16
21.
Which of the following is not stable?
a)
Helium
b)
Neon
c)
Ar and Kr
d)
All are stable
22.
How many protons does Sodium have?
a)
22.99
b)
11
c)
33.9
d)
11.99
23.
What is the mass number of sodium?
a)
11
b)
22.9
c)
33.99
d)
11.99
24.
How many neutrons does the sodium atom contain?
a)
11.99
b)
11
c)
22.99
d)
33.99
25.
Who organized the periodic table by atomic number?
a)
Mendeleev
b)
Moseley
26.
How many quarks have scientists discovered?
a)
4
b)
5
c)
6
d)
7
27.
The chemical symbol Fe represents which element?
a)
Flourine
b)
Iron
c)
Lead
d)
Mercury
28.
In order to discover quarks, tracks are left and discovered with a device called the
a)
Tevatron
b)
bubble chamber
29.
Particles with an electric charge of 1+
a)
protons
b)
electrons
c)
neutrons
d)
Protons and neutrons
30.
Elements in the same _______ undergo chemical reactions in similar ways
a)
group
b)
period
c)
family
d)
isotopes
31.
The chemical symbol Hg represents which element?
a)
Mercury
b)
Hydrogen
c)
Gold
d)
Lead
32.
If the number of electrons equals the number of protons, the atom is said to be
a)
neutral
b)
positively charged
c)
negatively charged
33.
The unit of measurement for atomic particles
a)
amu
b)
grams
c)
Newtons
d)
Moseleys
34.
If an element has 6 protons, what is the atomic number of that element
a)
12
b)
3
c)
6
d)
unknown
35.
Matter that is composed of only one type of atom
a)
element
b)
compound
c)
neutron
d)
protons
36.
Which of the following is not a subatomic particle?
a)
atom
b)
proton
c)
neutron
d)
electron
37.
How many neutrons are in the Magnesium atom?
a)
12.305
b)
24.305
c)
36.305
d)
12
38.
How many electrons are in the magnesium atom?
a)
24.305
b)
12
c)
unknown
d)
36
39.
The Neon atom is stable
a)
True
b)
False
40.
Mass number - atomic number =
a)
number of protons
b)
number of electrons
c)
number of neutrons
d)
number of isotopes
41.
What is the correct chemical symbol of gold?
a)
AG
b)
Ag
c)
Au
d)
AU
42.
Have the properties of both metals and non metals
a)
metalloids
b)
isotopes
c)
noble gases
d)
lanthanides
43.
Uses the symbol of the element and dots to represent the electrons in the outer energy level
a)
electron cloud
b)
electron shell
c)
electron dot diagram
d)
atomic model
44.
How many electrons does energy level 3 hold?
a)
2
b)
8
c)
16
d)
18
45.
How many electrons does energy level 4 hold?
a)
2
b)
8
c)
24
d)
32
46.
Which of the following could not be a chemical symbol for an element?
a)
O
b)
He
c)
Uup
d)
NA
47.
The Potassium atom is stable
a)
True
b)
False
48.
a capital letter or a combination of a capital letter and one or two smaller letters used to represent an element is called
a)
metalloid
b)
chemical symbol
c)
Element symbol
d)
abbreviation
49.
How many electrons are in the outer energy level?
a)
8
b)
2
c)
17
d)
7
50.
How many electrons in the outer energy level make an element stable?
a)
2
b)
8
c)
18
d)
32
100 %
