hydrogen

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hydrogen

Sources

www.education.jlab.org www.rsc.org www.chemicalelements.com www.chemistryexplained.com www.chemistry.about.com

Hydrogen's history

Hydrogen was first discovered in the early 1500s by alchemist Paracelsus when he noticed bubbles given off when iron fillings were added to sulfuric acid were flammable, and then again in 1671 by Robert Boyle but neither followed through with their research which is why Henry Cavendish receives all the credit for its discovery in 1766 where he collected the bubbles and showed that they were different from other gases.

Properties of Hydrogen

colorless tasteless odorless lowest density of all gases burns in air or oxygen to produce water

Where is Hydrogen commonly found in nature?

Hydrogen is commonly found in water, rocks, and minerals.

Hydrogen's position on the periodic table

It is the first element, it is in the first column.

Hydrogen's chemical symbol, average atomic mass, and atomic number

Fun fact about Hydrogen!

In compounds, Hydrogen can take a negative charge (H-) or a positive charge (H+)

Five compounds Hydrogen can form:

water (H2O) naturally occuring ammonia (NH3) human-made methane (CH4) human-made table sugar (C12H22O11) human-made hydrogen peroxide (H2O2) human-made hydrochloric acid (HCl) human-made

Hydrogen's uses

Ammonia cyclohexane methanol oil refining hydrogenate oils protective atmosphere to make flat glass flushing gas

Elements with similar properties

Lithium Sodium Potassium Rubidium Cesium Francium

The number of valence electrons in a neutral atom of Hydrogen is one

Hydrogen's origin

Hydrogen's name originates from the greek words hudôr (which means water) and gennan (which means generate). The gas was given its name hydro-gen, meaning water-former, by Antoine Lavoisier.