Leasing License Practice Exam

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What is radon characterized as?

  1. A gray, heavy metal

  2. A flammable, colored gas

  3. A radioactive, colorless, odorless, tasteless noble gas

  4. A common household chemical

The correct answer is: A radioactive, colorless, odorless, tasteless noble gas

Radon is characterized as a radioactive, colorless, odorless, tasteless noble gas. It is important in the context of environmental health and safety because it is naturally occurring and can accumulate in homes, particularly in lower levels such as basements. Being a noble gas means it is chemically inert under most conditions, which also contributes to its attributes of being colorless, odorless, and tasteless. The radioactive nature of radon poses health risks, such as lung cancer, particularly when inhaled over prolonged periods. This understanding underscores the importance of testing and mitigating radon levels in residential environments to ensure safety. The other choices do not accurately describe radon, as it is neither a metal nor a flammable gas, and it does not resemble a common household chemical.

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