What Is Rubidium Found In
Rubidium however is more widely scattered and seldom forms a natural mineral.
What is rubidium found in. It is not found freely in nature. Rubidium and cesium are often found together in nature. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance softness and conductivity. Rubidium can be liquid at ambient temperature but only on a hot day given that its melting point is about 40 c.
Rubidium was invented 1861 spectroscopically by german scientists robert bunsen and gustav kirchhoff and named after two prominent red lines of its spectrum. It is found only as an impurity in other minerals ranging in content up to 5 percent in such. It is the 16th most common element in the earth s crust. Rubidium was discovered by the german chemists robert bunsen and gustav kirchhoff in 1861 while analyzing samples of the mineral lepidolite kli 2 al al si 3 o 10 f oh 2 with a device called a spectroscope the sample produced a set of deep red spectral lines they had never seen before.
There are two naturally occurring isotopes in rubidium rubidium 85 is the stable and more abundant isotope while rubidium 87 is the radioactive isotope. Potassium minerals such as those found at searles lake california and potassium chloride recovered from the brines in michigan. It is a soft silvery white metallic element of the alkali metals group group 1. Rubidium chloride has been used to study the transport of potassium ions in humans since rubidium ions are not naturally found in the body and when present they are treated as if they were potassium.
It is found in lepidolite to the extent of about 1 5 and is recovered commercially from this source. Rubidium 87 is an unstable isotope that has a half life of about 50. It ignites spontaneously in air and reacts violently with water setting fire to. It is one of the most most electropositive and alkaline elements.
Rubidium is the chemical element with the symbol rb and atomic number 37. Rubidium occurs in pollucite leucite and zinnwaldite which contains traces up to 1 in the form of the oxide. Rubidium is the second most reactive and very soft metal sequence with a silvery white luster. Rubidium and strontium are used to radioactively date rocks minerals and meteorites according to encyclopedia britannica.
Rubidium cannot be stored under atmospheric oxygen as a highly exothermic reaction will ensue sometimes even resulting in the. Rubidium is a very soft silvery white metal in the alkali metal group. Rubidium can be taken up by cells of the body but these ions are not poisonous. Rubidium is not particularly harmful to humans and once in the body its ions are rapidly excreted in sweat and urine.
It can also be found in seawater and in mineral springs. Rubidium and cesium often occur together in nature. Rubidium sulfate rb 2 so 4 interesting facts. Rubidium was discovered 1861 spectroscopically by german scientists robert bunsen and gustav kirchhoff and named after the two prominent red lines of its spectrum.