The Periodic Table and Periodic Law
Practice Test
1.
Atoms of elements in group 1A have ____________.
a.
one electron in their outermost energy level
b.
eight electrons in their outermost energy level
c.
seven electrons in their outermost energy level
d.
two electrons in their outermost energy level
2.
Elements in the d block are also known as _______________.
a.
lanthanide metals
b.
alkali metals
c.
transition metals
d.
alkaline earth metals
3.
Which of the following are poor conductors of heat and electricity?
a.
nonmetals
b.
alkaline earth elements
c.
metals
d.
metalloids
4.
Why was Mendeleev's periodic table widely accepted?
a.
He organized the first 14 known elements.
b.
He predicted the existence and properties of undiscovered elements.
c.
He was the first to notice a pattern of similar properties among elements.
d.
His periodic table listed all of the elements in the correct order.
5.
Atoms with large ionization energy values are __________.
a.
most likely to lose their outer electrons
b.
less likely to form positive ions
c.
more likely to form positive ions
d.
lacking valence electrons
6.
Which group on the periodic table is known as the halogens?
a.
group 2A
b.
group 7A
c.
group 1A
d.
group 8A
7.
Which atom or ion has 16 protons and 18 electrons?
a.
Ne
2+
b.
N
+
c.
S
2-
d.
F
-
8.
Which of the following is an ion?
a.
HCl
b.
C
c.
O
2-
d.
lithium-3
9.
What characteristic do atoms in the same group of elements share?
Period 1
hydrogen
1s
1
1s
1
Period 2
lithium
1s
2
2s
1
[He]2s
1
Period 3
sodium
1s
2
2s
2
2p
6
3s
1
[Ne]3s
1
Period 4
potassium
1s
2
2s
2
2p
6
3s
2
3p
6
4s
1
[Ar]4s
1
a.
They have the same atomic mass.
b.
They have similar physical properties.
c.
The have the same number of electron orbitals.
d.
They have the same number of valence electrons.
10.
Which of the blocks on the periodic table contains the most elements?
a.
d block
b.
s block
c.
p block
d.
f block
11.
How would you classify an element that has an electron configuration of [Kr]5s
2
4d
10
5p
5
?
a.
a transition metal
b.
a representative element
c.
an alkali metal
d.
a noble gas
12.
Which of the following elements is most likely to form a negatively-charged ion?
a.
I
b.
Br
c.
Cl
d.
F
13.
Columns on the periodic table are known as __________.
a.
groups
b.
metalloids
c.
nonmetals
d.
periods
14.
In what part of the periodic table would you expect to find an element that emits light when struck by electrons?
a.
actinide series
b.
group 3A elements
c.
lanthanide series
d.
group 2A elements
15.
The ionic compound, sodium chloride, is formed from atoms of the elements sodium and chlorine. What happens to the size of each atom when it forms an ion?
a.
Sodium decreases in size and chlorine decreases in size.
b.
Sodium increases in size and chlorine decreases in size.
c.
Sodium decreases in size and chlorine increases in size.
d.
Sodium increases in size and chlorine increases in size.
