Question

answer the question correctly to continue: what do metalloids have in common with both metals and nonmetals? they have properties of both groups they are gases at room temperature they are always safe for construction they are found in group 1

Explanation:

Metalloids are elements that have properties of both metals and non - metals. For example, they can have some metallic luster (like metals) but also be semiconductors (a property more associated with non - metals in some ways). The option "They have properties of both groups" is correct. The option "They are gases at room temperature" is incorrect as metalloids are solids at room temperature. The option "They are always safe for construction" is wrong because their safety for construction depends on many factors and is not a general common property. The option "They are found in Group 1" is incorrect as metalloids are not all in Group 1 (e.g., silicon is a metalloid and is in Group 14).

Answer:

They have properties of both groups.