Which description best fits radon?

Which description best fits radon?

• A. Gas
• B. Liquid
• C. Solid
• D. Plasma

Answer: (A)

Radon is a gas at ordinary room conditions. It’s a chemical element in the noble gas family and is radioactive, colorless, and odorless. In homes, radon behaves as a gas that can seep in from soil and accumulate in the air, rather than existing as a liquid or solid inside living spaces. Plasma is a highly energetic state that requires extreme conditions and doesn’t describe radon in typical environments, so that option doesn’t fit. So the description that best fits radon is that it is a gas.

Radon is a gas at ordinary room conditions. It’s a chemical element in the noble gas family and is radioactive, colorless, and odorless. In homes, radon behaves as a gas that can seep in from soil and accumulate in the air, rather than existing as a liquid or solid inside living spaces. Plasma is a highly energetic state that requires extreme conditions and doesn’t describe radon in typical environments, so that option doesn’t fit. So the description that best fits radon is that it is a gas.