General Layout
Properties
Special Groups
100
The modern periodic table organizes elements according to this.
What is increasing atomic number?
100
The three classes of elements are these.
What are metals, nonmetals and nonmetals?
100
The nonreactive elements in group 8A are known as this.
What are the noble gases?
200
The vertical columns on the periodic table are called this.
What are groups?
200

Being shiny, malleable, and conductors are properties of this class of elements.

What are metals?

200
The very reactive elements in group 1A are known as this.
What are alkali metals?
200
The horizontal rows on the periodic table are called this.
What are periods?
200
Being brittle, dull, and insulators are properties of this class of elements.
What are nonmetals?
200
The elements in group 7A are known as this.
What are the halogens?
300

Elements in the same group share these characteristic

What are chemical and physical properties?

300
Silicon, Boron, and Tellurium are examples of this class of elements.
What are metalloids?
300
The reactive elements in group 2A are known as this.
What are alkali earth metals?
400
This class of elements are poor conductors of heat and electricity.
What are nonmetals?
400

This class of elements are good conductors of heat and electric current.

What are metals?

400
This class of elements have properties of both metals and nonmetals.
What are metalloids?
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