Strontium is an element that belongs to the same group as calcium, magnesium, and barium. It is a relatively soft, silvery-white metal that is highly reactive and can catch fire in air. Strontium has two stable isotopes and several radioactive isotopes, which are used in various applications such as radioisotope thermoelectric generators, cancer treatments, and analytical techniques.

One of the most interesting properties of Strontium is its ability to emit bright red light when burned. This makes it a popular element in pyrotechnics and fireworks displays, where it is used to produce bright red colors. Strontium is also used in the production of ferrite magnets, which are commonly found in small motors, loudspeakers, and other electronic devices.