The average typing speed for boys is 44 words per minute. This is slightly faster than for girls, who clock in at 37 wpm, a full 7 word per minute slower. This seems a little odd, because statistics show that girls actually enjoy practicing their typing skills more than boys do.
  Radioactive decay is a natural process that occurs because a given atomic nucleus is unstable. The instability in the nucleus will eventually result in some kind of nucl â¦ ear change (depending on the atom), and we call this radioactive or nuclear decay.adioactive decay is the spontaneous change or disintegration of an unstable atomic nucleus as it transforms itself to lose energy.
The reason radioactive isotopes emit radiation is that the emission of radiation is a nutural consequence of being radioactive. Let's look a bit more closely. Radioactive isotâ¦opes are unstable atoms, and they will undergo radioactive decay sooner or later. The unstable atomic nuclei undergo a change based on what particular isotope is being considered. In any case, when a nuclear change occurs, radiation of some kind is emitted from that nucleus. It really is that simple.