Download Unit 3 Practice Test

Name: __________________________________
Period: _______
Date: ______________
Periodic Table Practice Problems
Matching
Match each description in Column B with the correct term in Column A. Write the letter of the correct
description on the line.
Column A
Column B
_______ 1. metal
a. the energy needed to remove an electron
from an atom
_______ 2. halogen
b. good conductor of electricity
_______ 3. ionization energy
c. any element in Group 17
_______ 4. alkaline earth metal
d. how much an atom wants one more
electron
_______ 5. electronegativity
e. an element with all of its energy levels and
orbitals full
_______ 6. noble gas
f. an element in Group 2
Multiple Choice
12. Which sublevel corresponds to the transition metals in the periodic table?
a. s
c. d
b. p
d. f
14. Which of the following elements is a metalloid?
a. As
c. Br
b. Se
d. Kr
16. The element iodine, I, is a
a. period 5 alkali metal.
b. period 4 halogen.
c. period 5 halogen.
d. period 5 transition metal.
19. From left to right across the second period of the periodic table,
a. ionization energy increases.
c. electronegativity decreases.
b. atomic radius increases.
d. atomic mass decreases.
22. Electronegativity
a. generally decreases from left to right across a period.
b. is the amount of energy needed to remove an electron from an atom.
c. generally decreases from top to bottom within a group.
d. is generally higher for metals than for nonmetals.
23. Atomic size generally
a. increases from left to right across a period.
b. decreases from top to bottom within a group.
c. remains constant within a period.
d. decreases from left to right across a period.
24. Of the following atoms, which one has the smallest ionization energy?
a. boron
c. nitrogen
b. aluminum
d. silicon
25. The alkali metals do not include
a. Li.
c. Na.
b. Ca.
d. Rb.
Valence Electrons and Oxidation Number
1. What is the octet rule? ________________________________________________________________
_____________________________________________________________________________________
2. Complete the table below.
Element
Lithium
Calcium
Sulfur
Chlorine
Germanium
Beryllium
Carbon
Arsenic
# of Valence
Electrons
Gain or Lose Electrons?
# of Electrons to
Gain or Lose
Charge
Metals, Nonmetals, and Metalloids
Determine whether the following elements are metals, nonmetals, or metalloids. Then list one property
of each element.
Element
a. Gold
Metal, Nonmetal, or
Metalloid?
Metal
Property
Shiny
b. Nitrogen
c. Arsenic
d. Sodium
Periodic Families
1. You were just digging in your backyard and came across what you believe is a new element! It is in
Group 4 and it has a high melting point.
a. Do you think it’s a metal, nonmetal, or metalloid? Why?
b. Which periodic family does it belong to? _________________
c. Which element could it be? ____________
2. While exploring the bottom of the ocean floor, you come across a very cool element that you need to
identify. After running some laboratory tests, you determine that the element is a gas at room
temperature, doesn’t bind with any other elements, and doesn’t conduct electricity.
a. Do you think it’s a metal, nonmetal, or metalloid? Why?
b. Which periodic family does it belong to? _________________
c. Which element could it be? ____________
3. Tell whether each of the following elements is an inner transition metal, a noble gas, an alkali metal,
an alkaline earth metal, or a halogen. Then give its period, group number, and one property.
Element
Periodic Family
Group
Period
Property
a. Calcium
Alkaline earth metal
2
4
Reactive
b. Cesium
c. Fluorine
d. Chromium
e. Neon
f. Silver
g. Helium
h. Beryllium
i. Bromine
j. Krypton