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Which element (1, 2, or 3) is a liquid at room temperature (20 °C)? Justify your answer - Junior Cycle Science - Question 8iii - 2019
Question 8iii
Which element (1, 2, or 3) is a liquid at room temperature (20 °C)? Justify your answer. The table shows some of the properties of three elements from the Periodic ... show full transcript
Worked Solution & Example Answer:Which element (1, 2, or 3) is a liquid at room temperature (20 °C)? Justify your answer - Junior Cycle Science - Question 8iii - 2019
Step 1
Which element (1, 2, or 3) is a liquid at room temperature (20 °C)?
Answer
Element 2 is a liquid at room temperature (20 °C). This is because its melting point is -7 °C, which is below room temperature, and its boiling point is 59 °C, which is above room temperature. Therefore, at 20 °C, element 2 exists in a liquid state.