16 questions
A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely at -
metal
nonmetal
metalloid
cannot be determined
Luster is -
the capability of being drawn out into thin wires or threads
how well a piece of matter conducts electricity
the capability of being hammered into thin sheets
the way light is reflected off a surface
How would this element be classified?
metal
nonmetal
metalloid
Malleability is -
the capability of being drawn out into thin wires or threads
how well a piece of matter conducts electricity
the capability of being hammered into thin sheets
the way light is reflected off a surface
Ductility is -
the capability of being drawn out into thin wires or threads
how well a piece of matter conducts electricity
the capability of being hammered into thin sheets
the way light is reflected off a surface
Most metals on the periodic table are -
liquids
solids
gases
Nonmetals are located to the ______ of the dark zig-zag line on the periodic table.
right
left
middle
Metals are located to the _____ of the dark zig-zag line on the periodic table.
middle
left
right
Metalloids -
have some properties of both metals and nonmetals
have no properties of nonmetals
have no properties of metals
Which of the following properties of metals refers to how the element can reflect light?
malleability
compressability
luster
ductility
Conductivity is -
the capability of being drawn out into thin wires or threads
how well a piece of matter conducts electricity
the capability of being hammered into thin sheets
the way light is reflected off a surface
Elizabeth was examining elements and their physical properties. She described an element in her science journal as having no shine, an insulator, and very brittle. What would this element be classified as?
metal
metalloid
nonmetal
Which element is the only nonmetal on the left side of the Periodic Table?
oxygen
hydrogen
lithium
helium
Metals have all of the following physical properties except -
malleable
high conductivity
shiny luster
brittle
The elements argon, krypton, and xenon are all non-metals. Which property would these elements have in common?
poor conductor of electricity
shiny, lustrous surface
good conductor of thermal energy
soft and malleable
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is silicon?
metal
nonmetal
metalloid