Question

• name three elements that are gases at room temperature.

1. element research:

select one element from the periodic table. write a brief paragraph (4 - 5 sentences) about its properties, common uses, and any interesting facts.

Explanation:

For the first part, common gaseous elements at room - temperature include hydrogen, oxygen, and nitrogen. For the second part, taking oxygen as an example, it is a colorless, odorless, and tasteless gas. It is essential for respiration in most living organisms. It is used in medical settings to help patients with breathing difficulties. Oxygen also plays a crucial role in combustion processes. An interesting fact is that liquid oxygen has a pale - blue color.

Answer:

1. Hydrogen, Oxygen, Nitrogen
2. Oxygen is a colorless, odorless, tasteless gas. It is vital for respiration in most living things. Used in medical settings for patients with breathing problems and in combustion processes. Liquid oxygen has a pale - blue color.