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Chapter 4: Problem 63

Most of the elements are solids at room temperature. Give three examples of elements that are liquids at room temperature, and three examples of elements that are gases at room temperature.

Short Answer

Expert verified
Three examples of elements that are liquids at room temperature are Bromine (Br), Mercury (Hg), and Gallium (Ga). Three examples of elements that are gases at room temperature are Hydrogen (H), Nitrogen (N), and Oxygen (O).

Step by step solution

01

Identify Liquid Elements at Room Temperature

We need to find three elements whose melting point is below room temperature and boiling point is above room temperature. By consulting a periodic table or using reference resources, we can find that Bromine (Br), Mercury (Hg), and Gallium (Ga) are examples of elements that are liquids at room temperature. The melting and boiling points of these elements are as follows: - Bromine (Br): Melting point = 265.8K, Boiling point = 332.0K - Mercury (Hg): Melting point = 234.32K, Boiling point = 629.88K - Gallium (Ga): Melting point = 302.9146K, Boiling point = 2673K Step 2: Identify Gaseous Elements at Room Temperature
02

Identify Gaseous Elements at Room Temperature

We need to find three elements with boiling points below room temperature. By referring to a periodic table or using reference resources, we can observe that Hydrogen (H), Nitrogen (N), and Oxygen (O) are examples of elements that are gases at room temperature. The boiling points of these elements are as follows: - Hydrogen (H): Boiling point = 20.28K - Nitrogen (N): Boiling point = 77.36K - Oxygen (O): Boiling point = 90.20K

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