1
What element group does dull luster, brittle, and insulator describe?
nonmetals
What physical properties did we use to classify metals, nonmetals, and metalloids?
luster, electrical conductivity, and malleability
What element group does Neon belong to?
nonmetal
What is the name of the element group that has characteristics of metals and nonmetals?
metalloids
Where are the metals located on the periodic table?
left side
What element group does conductor, malleable, and shiny luster describe?
metals
What describes a material that can be rolled into flat sheets?
malleability
What element group does Silicon belong to?
metalloid
What is a semiconductor?
conducts electricity better than nonmetals but not as well as metals
Where are the nonmetals located on the periodic table?
right side of zig-zag line
Metals conduct what?
heat and electricity
What describes a material that can be pulled out into a long wire?
ductile
What element group does Aluminum belong to?
metal
True or False: Nonmetals are excellent insulators of heat and electricity.
True
Where are the metalloids located on the periodic table?
along the zig-zag line
What are two types of luster?
shiny and dull
What element group are insulators?
nonmetals
What element group does Carbon belong to?
nonmetal
__________ conduct electricity better than nonmetals, but not as well as metals.
Metalloids
What are 17 metallic elements that share chemical properties and used in modern technology?
rare earth elements
True or False: Nonmetals are good conductors.
False
What are the three groups of elements?
metals, nonmetals, metalloids
What element group does Sodium belong to?
metal
True or False: Metalloids are not as malleable or ductile, like metals.
True
What country produces the most rare earth elements?
China