Sagot :
it is claimed that electrons orbit their atom's nucleus not in well-known fixed orbits, but within "clouds of probability", i.e., spaces around the nucleus where they can lie with a probability of 95%, called "orbitals".
It is also claimed that the further away one looks for the electron from the nucleus, the more this probability decreases, yet it never reaches 0. The authors of the video conclude that there is a non-zero probability for an atom to have its electron "on the other side of the Universe".
If this is true, then there must be a portion of all atoms on Earth whose electron lies outside the Milky Way. Which portion of atoms has this property?