Question

ibra is analyzing the properties of several samples of elements to find out which sample is a metalloid. which set of properties most likely belongs only to a metalloid?

• forms basic compounds and is a solid
• has a high luster and is very brittle
• is a gas and has low electrical conductivity
• is brittle and forms acidic compounds

Explanation:

• Metals form basic compounds and are solids (not metalloids).
• Metalloids have a metallic luster (like metals) but are brittle (like nonmetals), a unique combination.
• Nonmetals are often gases with low conductivity (not metalloids).
• Nonmetals are brittle and form acidic compounds (not metalloids).

Answer:

B. has a high luster and is very brittle