Isra 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

Metalloids are substances that have properties of both metal and non-metal. They are brittle structures with highly lustrous properties. Thus, option B is correct.

What are metalloids?

Metalloids are chemical elements that are intermediate between non-metals and metals. All the metalloids are solid and have low elasticity, which makes them shattered due to their brittle nature. Alike metals, they have a shiny and lustrous look.

Some of the metalloids can conduct electricity and are semi-conductors, while they behave as non-metals during chemical reactions. A few examples of metalloids are silicon, boron, germanium, polonium, antimony, arsenic, etc.

Therefore, the metalloids are brittle and lustrous elements.

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