Question

4 which of the following types of elements can be brittle solids? metals and metalloids nonmetals and metalloids nonmetals only metals only 5 which of the following types of elements can be good conductors of electricity? metals only metals and metalloids nonmetals only nonmetals and metalloids 6 which of the following types of elements can be gases in room temperature? nonmetals and metalloids nonmetals only metals and metalloids metals only

Explanation:

• For question 4: Non - metals are often brittle solids, and some metalloids can also be brittle solids. Metals are generally malleable and ductile, not brittle.
• For question 5: Metals are known for their good electrical conductivity. Some metalloids can have semi - conducting properties but are not as good conductors as metals, and nonmetals are usually poor conductors.
• For question 6: At room temperature, many non - metals exist as gases. Metals and metalloids are usually solids at room temperature.

Answer:

1. Nonmetals and metalloids
2. Metals only
3. Nonmetals only