which statement accurately describes a half - life?\na rocks size is determined by half - life.\nall stable…
which statement accurately describes a half - life?\na rocks size is determined by half - life.\nall stable and unstable elements have a half - life.\nan atom of an element becomes half its original size in a half - life.\na half - life is the time required for half of a radioactive element to decay.
Answer
Brief Explanations:
La vida media es el tiempo necesario para que la mitad de los átomos de un elemento radiactivo decaigan. Las otras opciones son incorrectas. El tamaño de una roca no está determinado por la vida media. Los elementos estables no tienen vida media y la vida media no se refiere a que un átomo se haga la mitad de su tamaño original.
Answer:
A half - life is the time required for half of a radioactive element to decay.