<span>A half-life of a radioactive substance is the amount of time needed for one hald of the nuclie in a sample to decay into a stable isotope.Many protons and neutrons disturb the balance of binding energy from a strong nuclear forces resulting for the nucleus to be unstable. To be in a balance state, the unstable nucleus will give off a proton or neutron through radioactive decay.</span>
The short sequences of characters that appear and can be
seen at the end of a filename preceded by a period is filename extensions. While
a sequence structure is a set of statements that execute in the order they
appear.
