[ATOM]

Hydrogen

[ATOM]
Information valid for H-1 unless otherwise noted

Basic Information


Symbol: H
Atomic Number: 1
Mass: 1.00794
Melting Point: -259.14 C
Boiling Point: -252.87 C
Number of Protons/Electrons: 1
Number of Neutrons: 0
Classification: Non-metal
Crystal Structure: Hexagonal
Density @ 293 K: 0.08988 g/cm3
Color: colorless


Atomic Structure

[Bohr Model of Hydrogen]
Number of Energy Levels: 1

  1. First Energy Level: 1

Isotopes

Isotope Half Life
H-1 Stable
H-2 Stable
H-3 12.3 years

Facts


Date of Discovery: 1766
Discoverer: Henry Cavendish
Name Origin: From the Greek words hudôr (water) and gennan (generate)
Uses: Balloons, metal refining
Obtained From: mines, oil, gas wells


Related Links

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  1. Pure Power
  2. sci.energy.hydrogen
  3. The American Hydrogen Association
  4. Hydrogen Bonding
  5. Why use hydrogen?
  6. Hydrogen InfoNet
  7. Chemical Of The Week -- Hydrogen
  8. HHMI Laboratory Safety: Hydrogen