Multiple Choice
Which of the following elements is a nonmetal that is a polyatomic solid?
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4. Atoms and Elements
Periodic Table: Phases (Simplified)
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At a temperature of and , which element is most likely to be in the liquid phase?
A
Mercury (Hg)
B
Bromine (Br)
C
Neon (Ne)
D
Iron (Fe)
Verified step by step guidance1
Step 1: Understand the problem context. The question asks which element is most likely to be in the liquid phase at 1000 K and 1 atm pressure. To answer this, we need to consider the boiling points of the elements relative to the given temperature.
Step 2: Recall that an element will be in the liquid phase if the temperature is between its melting point and boiling point at the given pressure (1 atm). If the temperature is below the melting point, the element is solid; if above the boiling point, it is gas.
Step 3: Look up or recall the approximate melting and boiling points of the elements mentioned: Mercury (Hg), Bromine (Br), Neon (Ne), and Iron (Fe). This will help determine their phase at 1000 K.
Step 4: Compare the temperature 1000 K to the melting and boiling points of each element. Identify which element has a melting point below 1000 K and a boiling point above 1000 K, meaning it would be liquid at that temperature.
Step 5: Conclude that the element fitting this criterion is the one most likely to be in the liquid phase at 1000 K and 1 atm.
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