# data[].attributes.body
"Hydrogen." - Element Information, Properties and Uses. Royal Society of Chemestry, n.d. Web. 09 Nov. 2013. <http://www.rsc.org/periodic-table/element/1/>.

"Hydrogen." Hydrogen (H). Lenntech, n.d. Web. 09 Nov. 2013. <http://www.lenntech.com/periodic/elements/h.htm>.

Helmenstine, Anne Marie. "Hydrogen Facts." About.com Chemistry. About.com, n.d. Web. 09 Nov. 2013. <http://chemistry.about.com/od/elementfacts/a/hydrogen.htm>.

For image sources, click on the image, then on the purple "Source" button in the lower right-hand corner.

# data[].attributes.body
Even though it is nowhere near the others on the periodic table, hydrogen is a part of the diatomic seven. This is a group of elements that never appear as only one atom. They are always attatched to something, be it another element(s) or another atom of itself.

# data[].attributes.body
On earth, hydrogen is found mostly in water molecules.

# data[].attributes.body
Liquid hydrogen is important in cryogenics and the study of superconductivity because its melting point is just above absolute zero.

# data[].attributes.body
"Hydrogen" comes from the Greek words "hydro" and "genes" meaning "water" and "generator".

# data[].attributes.body
Boiling Point : -252.762°C

Melting Point : -259.2°C

# data[].attributes.body
A colorless, odorless gas

The most abundant element in the universe

On earth, lone hydrogen is found mostly in volcanic gases.

# data[].attributes.body
In its most basic and most abundant form, hydrogen is composed of only one proton and one electron. This makes it the lightest element. In fact, it is so light that single atoms of it can float right out of Earth's atmosphere!

# data[].attributes.body
Henry Cavendish discovered hydrogen in 1766

# data[].attributes.body
Group 1 is the alkali metals. Though hydrogen is placed here, it is only part of group 1; it is not considered an alkali metal.

# data[].attributes.headline
Even though Hydrogen hangs out around the metals,

# data[].attributes.subject
Even though Hydrogen hangs out around the metals,

# data[].attributes.body
It is actually nonmetal

# data[].attributes.body
Hydrogen is a gas.