Hydrogen

By; Blake Gonzalez, Pd.7

Basics

  • Element: Hydrogen
  • Symbol: H
  • Atomic number: 1
  • Atomic weight: 1.00794
  • Group: 1
  • Color; Colorless
  • Classification; Non metallic
Hydrogen's Description: A colorless, highly flammable element.

History

  • Robert Boyle in described the reaction between iron filings and dilute acids which results in the evolution of gaseous hydrogen.
  • From the Greek words "hydro"
  • Deuterium gas made up from deuterium, a heavy isotope of hydrogen, was discovered in 1931
  • Was discovered in London England
  • Discovered in 1766

Uses

Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because of the fire risk.

Biology (in humans)

  • Hydrogen makes up two of the three atoms in water and water is absolutely essential to life.
  • Hydrogen is present in all organic compounds.

Geology (In the universe)

Makes up about about 90% of the universe by weight.

Properties

At standard temperature and pressure, hydrogen is a nontoxic, nonmetallic, odorless, tasteless, colorless, and highly combustible diatomic gas with the molecular formula H 2.

Interesting facts

  • Hydrogen is the lightest element it is also the lightest gas
  • Liquid Hydrogen has the lowest density of any liquid
  • Hydrogen is the most abundant element in the universe
  • Hydrogen is the only atom for which Schrodinger equation has an exact solution
  • Hydrogen reacts explosively with the elements oxygen, chlorine, and fluorine.
  • Solid, crystalline hydrogen has the lowest density of any crystalline solid.