The lightest element is hydrogen, H2, which is also the most common. Hydrogen is very reactive and forms water when it interacts with oxygen.Know More
Hydrogen has the following properties:
Hydrogen is a colorless and odorless gas with the lowest density of all the gases. There is evidence suggesting that hydrogen could become a clean fuel source, and it is used to power some buses and cars. In the chemical industry it is used to produce ammonia as a fertilizer, and it removes sulfur during oil production. In addition, it hydrogenates oils to produce fats like margarine.
Other common uses for hydrogen include filling balloons and airships, as well as forming a protective environment during glass sheet manufacturing. As hydrogen reacts with oxygen to produce water, it can become problematic when used in airships and balloons.
In the human body hydrogen exists to form hydrogen bonds. However, it is not chemically active in other ways. As well as being common on Earth, hydrogen is found elsewhere in the solar system. For example, Jupiter is primarily made from hydrogen.Learn more about Atoms & Molecules
The most abundant element in the universe is hydrogen. Approximately 75 percent of all matter is composed of hydrogen. As of 2015, 90 percent of the visible universe is comprised of hydrogen.Full Answer >
When French scientist Antoine Lavoisier discovered that hydrogen was a necessary component in water in 1783, he named the element "hydrogen," derived from the Greek words "hydro" and "genes." Together, these two Greek words mean "water forming."Full Answer >
Some interesting hydrogen facts for kids include that it is the most common element found throughout the universe, where it is often found in stars and gas planets, such as Jupiter. Hydrogen is one of the two elements, along with oxygen, that composes water.Full Answer >
Pure hydrogen gas, H2, is almost purely water insoluble, and like all other gases, its solubility decreases as the temperature of the water increases. At zero degrees Celsius, the solubility of hydrogen is 0.0019 grams per kilogram of water, which drops to below 0.0012 g/kg at 60 degrees.Full Answer >