Question

which statement describes a property that is unique to metalloids?
metalloids are shiny.
metalloids are semiconductive.
metalloids are solid.
metalloids are brittle.

Explanation:

• Shiny: Metals are also shiny, so not unique to metalloids.
• Semiconductive: Metalloids are known for being semiconductors, a property not typical of metals (good conductors) or non - metals (insulators in general), so this is unique to metalloids.
• Solid: Many metals and non - metals (like carbon in diamond form) are solid, so not unique.
• Brittle: Some non - metals are brittle, so not unique to metalloids.

Answer:

Metalloids are semiconductive.