Which properties do metalloids share with metals?
PER
Both are shiny and are brittle.
Both are very conductive and are dull.
Both are brittle and are gases at room temperature.
Both are shiny and are solid at room temperature.
O

Metals are not brittle so it can’t be the first one or the third one, both metalloids and metals are shiny so it can’t be the second one. Therefore, it would be the last one because both metalloids and metals are shiny and both are solids at room temperature because it is not a high enough melting point.

ANSWER: Both are shiny and are solid at room temperature.