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WorksheetsAtomic Structure Periodic Table
Total questions: 26
Worksheet time: 26mins
Name
Class
Date
1.
For an atom to be neutral, the number of protons must equal the number of neutrons.
a)
true
b)
false
2.
The sum of the number of protons and neutrons in an atom is the mass number.
a)
true
b)
false
3.
The atomic number of an element is determined by its number of protons.
a)
true
b)
false
4.
Every atom of the same element has the same atomic number.
a)
true
b)
false
5.
Elements arranged in vertical columns in the periodic table are called periods.
a)
true
b)
false
6.
Dot diagrams are used to represent
a)
atomic numbers
b)
atomic mass
c)
isotopes
d)
outer level electrons
7.
A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is
a)
26
b)
30
c)
52
d)
56
8.
Atoms of the same element with different numbers of neutrons are called
a)
isotopes
b)
metals
c)
metalloids
d)
radioactive elements
9.
A particle that moves around the nucleus is a(n)
a)
electron
b)
proton
c)
neutron
d)
quark
10.
Most of the mass of an atom is found in its
a)
nucleus
b)
electron cloud
c)
atomic number
d)
mass number
11.
Each row in the periodic table ends with a
a)
metal
b)
nonmetal
c)
metalloid
d)
noble gas
12.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
13.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
14.
How many valence electrons does Carbon have?
a)
4
b)
12
c)
6
d)
14
15.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
16.
Which element is found in Period 4 and Group 2?
a)
Helium (2)
b)
Beryllium (4)
c)
Calcium (20)
d)
Strontium (38)
17.
Which of the following atoms has a largest atomic radii?
Ca - Ra - Be - Sr
a)
Ca
b)
Sr
c)
Be
d)
Ra
18.
Who created the first accepted version of the Periodic Table?
a)
Rutherford
b)
Thompson
c)
Dalton
d)
Mendeleev
19.
In order to determine the number of neutrons
a)
it is always equal to number of protons
b)
it is always equal to number of electrons
c)
atomic mass minus atomic number
d)
subtract electrons from atomic number
20.
On the periodic table, Periods are
a)
Horizontal rows
b)
Vertical columns
21.
Which of the following is an Alkaline Earth Metal?
a)
Calcium
b)
Lithium
c)
Phosphorus
d)
Copper
22.
Which of the following is a Halogen?
a)
Bromine
b)
Rubidium
c)
Argon
d)
Beryllium
23.
Name the group that contains inert (nonreactive) elements.
a)
noble gases
b)
halogens
c)
alkali metals
d)
alkaline earth metals
24.
Is silicon a metal, nonmetal or metalloid?
a)
Metal
b)
NonMetal
c)
Metalloid
25.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
26.
What period and group is Flourine on the periodic table?
a)
Period 7, Group 3
b)
Period 5, Group 4
c)
Period 2, Group 17
d)
Period 8, Group 2
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