A report about the decay and half-life of different radioactive elements. It is impossible to predict when any one atom will decay but by looking at a number of atoms an average rate of decay can ...

Radioactive decay is a stochastic (i.e. random) process at the level of single atoms. According to quantum theory, it is impossible to predict when a particular atom will decay, regardless of how long ...

A New Zealand mayor has invited the American ambassador for a history lesson, after US President Donald Trump appeared to ...

Try to keep the same number of neutrons and protons as you build your atom. If the imbalance is too great, radioactive decay will occur. Up to two electrons may exist in the atom's first shell.

^{4}\textrm{He}\) When a radioactive atom emits an alpha particle the mass number decreases by four and the atomic number drops by two. Here is the equation for the alpha decay of radon-219 into ...

One of the most famous quantum thought experiments is that of the "Schrödinger's cat"—a cat whose life or death depends on the decay of a radioactive atom. According to quantum mechanics ...

Experimental observations of the half life of rutherfordium-252 demonstrate that its stability lies well within the limits ...

Governed by quantum rules, the radioactive atom can either decay or not at any given moment. There’s no telling when the moment will come, but when it does decay, it breaks the vial, releases ...