A radioactive isotope is an unstable form of an isotope whose nucleus spontaneously decays, emitting particles and energy.
Un isótopo radiactivo es una forma inestable de un isótopo cuyo núcleo se desintegra espontáneamente, emitiendo partículas y energía.
| Front | radioactive isotope |
|---|---|
| Back | An isotope (an atomic form of a chemical element) that is unstable; the nucleus decays spontaneously, giving off detectable particles and energy. |
Tags: ch.02
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