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Multiple Choice
Which of the following is the only nonmetal that is a liquid at room temperature?
A
Iodine (I)
B
Phosphorus (P)
C
Chlorine (Cl)
D
Bromine (Br)
Verified step by step guidance
1
Recall the physical states of elements at room temperature (approximately 25°C or 298 K). Elements can be solids, liquids, or gases under these conditions.
Identify the elements listed: Iodine (I), Phosphorus (P), Chlorine (Cl), and Bromine (Br). Determine their typical states at room temperature.
Iodine (I) is a solid at room temperature, known for its purple-black crystalline form.
Phosphorus (P) is also a solid at room temperature, commonly found as white or red phosphorus.
Chlorine (Cl) is a gas at room temperature, a greenish-yellow diatomic gas.
Bromine (Br) is unique among these because it is a liquid at room temperature, appearing as a reddish-brown liquid.
Therefore, the only nonmetal liquid at room temperature among the options is Bromine (Br).