As its name implies, hydrogen was first observed in water. Water consists of one oxygen atom bonded with two atoms of hydrogen. The abundance of water on Earth makes it the most common source of hydrogen on the planet. Pure hydrogen is rare on Earth, however, due to its propensity to react in the presence of oxygen and precipitate out as water vapor.Know More
Atomic and molecular hydrogen are most common beyond the Earth. Hydrogen is the primary constituent of the Sun, as well as most other stars, and it can be observed in vast quantities throughout the universe. Often, hydrogen forms the major component of certain nebulae, the so-called "stellar nurseries," which incubate the next generation of stars.
Hydrogen is also the main component of the atmospheres of gas giant planets. Jupiter, Saturn, Uranus and Neptune all have a proliferation of hydrogen and various compounds of hydrogen in their chemistry. This hydrogen-rich chemistry is an important distinction when describing a planet. Because hydrogen and oxygen cannot be held in equilibrium within the same atmosphere, a planet can be described by which gas dominates its air. An oxygen-rich world, such as Earth, is said to have an oxidizing atmosphere, while a hydrogen-rich world, such as Jupiter, has a reducing one.Learn More
Lithium is never found in its pure form in nature, according to the UC Davis ChemWiki. It is found in igneous rocks combined with other elements, such as aluminum, silicon and oxygen, and in salt water as lithium chloride.Full Answer >
Hydrogen is the most common element in the universe and the first listed in the periodic table of elements. It is a colorless and odorless gas. Each atom of hydrogen contains one proton and one electron.Full Answer >
Quark-gluon plasma is the densest form of matter ever observed. It was created during an experiment at the Large Hadron collider in 2011. According to National Geographic, it is assumed that the matter making up a black hole is more dense, but this has never been observed or measured.Full Answer >
Hydrogen is a very important element for humans because it is one of the elements that comprises water, or H2O. It exists in human bodies and is used for a variety of important technologies as a renewable energy source and for other applications. Hydrogen is also considered by scientists to be one of the most commonly found elements in our universe as it comprises an estimated 75 percent of the entire universe's elemental mass.Full Answer >