Which of the following statements about radioactive isotopes is true?

Question

Quizplus · Accepted Answer

Radioactive isotopes emit energy in the form of radiation, which can damage molecules and break chemical bonds in cells. This can cause mutations or cell death, and can have serious consequences for organisms exposed to high levels of radiation. While some radioactive isotopes can be used in medicine or industry, they must be handled carefully to minimize the risk of harm to living things. Choice A is incorrect because the nuclei of radioactive isotopes are typically unstable and tend to decay rather than losing electrons. Choice B is incorrect because living cells do not distinguish between radioactive and nonradioactive isotopes of the same element, and will incorporate both into their structures if they are present. Choice D is incorrect because while some radioactive elements occur naturally, such as uranium and radon, they can still be harmful if not properly controlled.

Which of the Following Statements About Radioactive Isotopes Is True