Which materials undergo radioactive decay? check all that apply. atoms that are unstable. elements that have a half-life. atoms that release energy and particles. elements that have turned into a new element. elements that have a consistent number of particles

The right answer are A,B,C and D (E is false)

Radioactive decay is the reduction of the number of radioactive nuclei (unstable) in a sample. Radioactive decay occurs until all nuclei in the sample are stable.

Any radionuclide is as likely to disintegrate at one time as another radionuclide of the same species, and disintegration does not depend on the physicochemical conditions in which the nuclide is located. In other words, disintegration is governed by chance, and the law of radioactive decay is a statistical law.

A.B.D are the correct answers

Explanation:

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4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."