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WorksheetsUnit 2: Periodic Table Review
Total questions: 20
Worksheet time: 10mins
What is the group number for alkali metals on the periodic table?
Group 2
Group 1
Group 17
Group 18
Which scientist created the first periodic table?
Mendeleev
Newton
Curie
Bohr
What does the atomic number of an element represent?
Number of neutrons
Number of protons
Number of electrons in the outer shell
Atomic mass
Which group on the periodic table contains the noble gases?
Group 1
Group 2
Group 17
Group 18
What is the element symbol for sodium?
S
So
Na
N
Which of the following best describes a metalloid?
Only conducts electricity
Has properties of both metals and nonmetals
Is always a gas
Is always a solid
What is a period on the periodic table?
Vertical column
Horizontal row
Group of gases
Group of metals
Which group contains very reactive nonmetals that form salts?
Alkali metals
Halogens
Noble gases
Transition metals
What is the main characteristic of synthetic elements?
They are found naturally
They are man-made and usually radioactive
They are always gases
They are always metals
Which elements are found in period number 3 of the periodic table?
H, He, Li
Na, Mg, Al
K, Ca, Sc
F, Ne, Ar
Which of the following best explains why alkali metals are more reactive than alkaline earth metals?
Alkali metals have more protons
Alkali metals have one valence electron, making them easier to lose
Alkali metals are gases
Alkali metals are heavier
If an element is shiny and a good conductor of electricity, to which category does it most likely belong?
Nonmetals
Metalloids
Metals
Noble gases
How does the atomic mass of an element differ from its atomic number?
Atomic mass is the number of protons; atomic number is protons plus neutrons
Atomic mass is protons plus neutrons; atomic number is the number of protons
Atomic mass is the number of electrons; atomic number is the number of neutrons
Atomic mass is the number of neutrons; atomic number is the number of electrons
Why are noble gases considered inert?
They have incomplete outer shells
They have full outer electron shells
They are metals
They are radioactive
Which statement best describes the difference between a group and a period on the periodic table?
Groups are horizontal rows; periods are vertical columns
Groups are vertical columns; periods are horizontal rows
Both are the same
Groups contain only metals; periods contain only nonmetals
An element has atomic number 58. To which series does it belong?
Lanthanides
Actinides
Transition metals
Halogens
A student is given an unknown element. It is a brittle solid and a poor conductor of electricity. To which category does it most likely belong?
Metal
Nonmetal
Metalloid
Noble gas
Given that valence electrons determine bonding behavior, which element would be more likely to form bonds: a noble gas or a halogen? Explain your reasoning.
Noble gas, because it has a full outer shell
Halogen, because it needs one more electron to fill its outer shell
Both are equally likely
Neither forms bonds
A chemist wants to create a new element that is not found in nature. What property would this element most likely have, based on the periodic table?
It would be stable and non-radioactive
It would be synthetic and usually radioactive
It would be a noble gas
It would be a halogen
If you are designing an alloy and need a metal that is commonly used in alloys and found in the middle of the periodic table, which type of element should you select?
Alkali metal
Transition metal
Halogen
Noble gas
