Basics of the Table
This is the chart that organizes elements by atomic number and properties.
What is the periodic table?
The periodic table is arranged in these.
What are rows and columns?
These are found on the left side of the periodic table.
What are metals?
A chemical family is defined as this.
What is a group of elements with similar properties?
This group number contains alkali metals.
What is Group 1?
This scientist created the periodic table in 1869.
Who is Dmitri Mendeleev?
Rows on the periodic table are called this.
What are periods?
These are found on the right side of the periodic table.
What are nonmetals?
These elements are very reactive metals with one valence electron.
What are alkali metals?
This group number contains noble gases.
What is Group 18?
Mendeleev left gaps in his table for these.
What are undiscovered elements?
Columns on the periodic table are called this.
What are groups?
This element is a nonmetal but is located on the left side.
What is hydrogen?
These elements have two valence electrons and are less reactive than alkali metals.
What are alkaline earth metals?
These metals are found in groups 3–12.
What are transition metals?
These elements become MORE reactive as you go DOWN the group and are stored in oil to prevent reactions.
What are alkali metals?
Each element is displayed in this type of box.
What is an element box?
There are this many periods on the periodic table.
What is 7?
These elements are found along the staircase and share properties of both metals and nonmetals.
What are metalloids?
These elements have seven valence electrons and are very reactive nonmetals.
What are halogens?
These elements are radioactive and found at the bottom of the table (89–103).
What are actinides?
This number represents the number of protons in an element.
What is the atomic number?
This zigzag line separates metals and nonmetals.
What is the staircase?
Most metals are this state of matter at room temperature.
What are solids?
These elements do not react because they have full outer shells.
What are noble gases?
This element is the only metal that is liquid at room temperature.
What is mercury?