Periodic Table Flashcards
Periodic Law
The law that states that when elements are organized by atomic number, they show a periodic repetition of properties
Group
The columns of the periodic table
Periods
The rows of a periodic table
Allotropes
The different forms of a element
What are the different properties of a metal?
Malleable, good conductors of heat & electricity, ductile, solid at room temperature (except for mercury), and lustrous in their pure form
What are the different properties of a nonmetal?
Brittle, bad conductors of heat & electricity, and not lusterous
What are the different properties of a metalloid?
Properties depend on the conditions
Where are the alkali metals located?
Group 1A
Where are the alkaline earth metals located?
Group 2A
Where are the halogens located?
Group 7A
Where are the noble gasses located?
Group 8A
What does malleable mean?
Able to be shaped with a hammer
What does ductile mean?
Able to be twisted into a wire
What does lustrous mean?
Shiny
What are valence electrons?
Electrons located in the outermost shell of an atom