Question
The table shows the physical properties of an unknown substance after it was tested in a lab.
Appearance dull
Conductivity none
Malleability brittle
This unknown substance is most likely
A. a metal.
B. an alloy.
C. a metalloid.
D. a nonmetal.
Appearance dull
Conductivity none
Malleability brittle
This unknown substance is most likely
A. a metal.
B. an alloy.
C. a metalloid.
D. a nonmetal.
Answers
GPT-5 mini
D. a nonmetal.
Reason: Nonmetals are typically dull, poor or nonconductors of electricity, and brittle when solid. Metals and alloys are conductive and malleable; metalloids usually show some conductivity (semiconductors) and often have a metallic luster.
Reason: Nonmetals are typically dull, poor or nonconductors of electricity, and brittle when solid. Metals and alloys are conductive and malleable; metalloids usually show some conductivity (semiconductors) and often have a metallic luster.