What is H2?


H2 Properties 

The name "Hydrogen"
From the Greek words hydro and genes, which together mean "water forming."
  • Atomic Number: 1
  • Atomic Weight: 1.00794
  • Melting Point: 13.81 K (-259.34°C or -434.81°F)
  • Boiling Point: 20.28 K (-252.87°C or -423.17°F)
  • Density: 0.00008988 grams per cubic centimeter
  • Phase at Room Temperature: Gas
  • Element Classification: Non-metal
  • Period Number: 1    Group Number: 1    Group Name: none
  • Estimated Crustal Abundance: 1.40×103 milligrams per kilogram
  • Estimated Oceanic Abundance: 1.08×105 milligrams per liter
  • Number of Stable Isotopes: 2   (View all isotope data)
  • Ionization Energy: 13.598 eV

 Facts About H2

Hydrogen is non-toxic, non-polluting and environmentally benign (CAFCP). 

Did you know approximately 11 millions tons of hydrogen are produced each year in the U.S.; enough to power 20-30 million cars or 5-8 million homes (EIA).

 Learn more: Interesting Facts About Hydrogen