WorksheetsPeriodicity
Total questions: 30
Worksheet time: 42mins
Name
Class
Date
1.
A ___________ is an arrangement of elements in columns
a)
columns
b)
rows
c)
periodic table
d)
electron shell
2.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
3.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
4.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
5.
Which element is not a metal?
a)
H
b)
Re
c)
Al
d)
B
6.
The atoms along the staircase are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
7.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
8.
How did Mendeleev arrange the elements?
a)
alphabetical
b)
density
c)
melting point
d)
atomic mass
9.
Which of the following is the most metallic element in period 3?
a)
Boron (B)
b)
Sodium (Na)
c)
Argon (Ar)
d)
Silicon (Si)
10.
A rule that states that repeating chemical and physical properties of elements change periodically with the atomic number of the elements is the _________.
a)
periodic law
b)
alkaline-earth metals
c)
actinide
d)
group rule
11.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
12.
This class of elements are sometimes called "semiconductors."
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Groups
13.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
14.
The yellow atoms are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
15.
How many electrons does Oxygen need to fill its outer shell?
a)
3
b)
4
c)
1
d)
2
16.
How many Valance electrons does Iodine Have?
a)
6
b)
16
c)
7
d)
17
17.
The periodic table has __ periods.
a)
18
b)
8
c)
2
d)
7
18.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
19.
The elements in this group have 5 valence electrons and include elements N, P, and As.
a)
Group 5
b)
Group 1
c)
Group 18
d)
Group 15
20.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
21.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
22.
What is the noble gas shorthand electron for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p4
23.
What atom matches this electron configuration?
[Xe] 6s25d9
[Xe] 6s25d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
24.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
25.
The electron configuration of an atom is 1s22s22p6. The number of valence electrons in the atom is
a)
3
b)
6
c)
8
d)
10
26.
Which element is depicted from this orbital diagram
a)
Fluorine
b)
Neon
c)
Chlorine
d)
Argon
27.
When an atom loses a valence electron, it becomes a(n) _____________ ion.
a)
positive
b)
negative
c)
neutral
d)
polyatomic
28.
When an atom gains a valence electron, it becomes a(n) _____________ ion.
a)
positive
b)
negative
c)
neutral
d)
polyatomic
29.
How many unpaired electrons would lithium have?
a)
1
b)
2
c)
3
d)
0
30.
What atom matches this electron configuration?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
100 %
