Which of the following statements regarding radiation are false?
a. all elements heavi...
Which of the following statements regarding radiation are false?
a. all elements heavier than bismuth are radioactive.
b. the time for half of the original sample to spontaneously decay is called the half-life (t1/2).
c. all radioactive elements are spontaneously decaying towards formation of a stable element.
d. radioactivity is a natural part of our environment. all of the above are true.
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