Which group on the periodic table contains the only liquid nonmetal at room temperature?

• A. Transition metals (Groups 3-12)
• B. Alkali metals (Group 1)
• C. Noble gases (Group 18)
• D. Halogens (Group 17)

Answer: (D)

Verified step by step guidance

1. Recall the classification of elements on the periodic table by groups and their general properties, focusing on the physical states of elements at room temperature (about 25°C).
2. Identify the groups mentioned: Transition metals (Groups 3-12), Alkali metals (Group 1), Noble gases (Group 18), and Halogens (Group 17), and consider their typical states at room temperature.
3. Understand that most metals, including transition metals and alkali metals, are solids at room temperature, while noble gases are gases under these conditions.
4. Recognize that halogens include elements like fluorine and chlorine (gases), bromine (a liquid), and iodine (a solid) at room temperature.
5. Conclude that the only liquid nonmetal at room temperature is bromine, which belongs to the Halogens (Group 17), making this group the correct answer.