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A Substance Is Described as Being Radioactive

Question 6
Multiple Choice
arrowQuestion 6arrow
Multiple Choice

A substance is described as being radioactive.What does this indicate about the substance?

A)The substance was formed as a result of the decay of an unstable nucleus.
B)The substance has been exposed to radiation from a decaying nucleus.
C)The substance emits high energy particles or rays from its unstable nucleus.
D)The substance readily absorbs radiation from the radiofrequency region of the electromagnetic spectrum.
E)The substance is extremely small; special radio microscopes are necessary to view it.

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