Difficulty: Medium

Average Score: 58%

Which statement represents a general characteristic of nonmetals?

Rationale

They can be solid, liquid, or gas at room temperature.

Nonmetals exhibit a diverse range of physical states at room temperature, including solids (like sulfur and phosphorus), liquids (like bromine), and gases (like oxygen and nitrogen). This variability in states is a hallmark characteristic that differentiates nonmetals from metals, which are predominantly solid at room temperature.

A (They can be solid, liquid, or gas at room temperature.) CORRECT

This statement accurately captures the general characteristic of nonmetals, as they can exist in various physical states under standard conditions. This flexibility in state reflects the diverse nature of nonmetals and is an essential aspect of their classification in the periodic table.

B (They have intermediate electrical conductivity.) YOUR ANSWER

This choice inaccurately describes nonmetals as they typically exhibit poor electrical conductivity. Nonmetals are known for being insulators rather than having intermediate conductivity levels, which are more characteristic of metalloids. Therefore, this statement does not represent a general characteristic of nonmetals.

C (They are called semiconductors.) YOUR ANSWER

Referring to nonmetals as semiconductors is misleading, as this term specifically applies to metalloids, which possess properties intermediate between metals and nonmetals. Nonmetals, on the other hand, are generally insulators and do not conduct electricity well, making this statement incorrect.

D (They tend to lose electrons.) YOUR ANSWER

This statement is characteristic of metals, which commonly lose electrons to form positive ions. Nonmetals, in contrast, tend to gain electrons during chemical reactions, often forming negative ions. Thus, this choice does not accurately represent the behavior of nonmetals.

Conclusion

Nonmetals are characterized by their ability to exist in solid, liquid, or gaseous forms at room temperature, highlighting their diverse physical properties. In contrast, the other options misrepresent nonmetals by attributing characteristics more aligned with metals or metalloids. Understanding these distinctions is crucial for grasping the fundamental properties of elements within the periodic table.

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