Hydrogen

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Hydrogen (H) is the simplest element in the universe, containing a single proton and electron.

Properties

  • Atomic number: 1
  • Atomic Weight: 1.00794
  • Melting point: -434.81°F (-259.34°C or 13.81 K)
  • Boiling point: -423.17°F (-252.87°C or 20.28 K)
  • 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[1]

References

  1. http://education.jlab.org/itselemental/ele001.html

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