Information valid for H-1 unless otherwise noted

Hydrogen

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

Number of Energy Levels: 1 First Energy Level: 1

Isotopes

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

Information about hydrogen-powered cars

2. sci.energy.hydrogen

A newsgroup about hydrogen

3. The American Hydrogen Association

More information about hydrogen energy systems

4. Hydrogen Bonding

From the University of Idaho

5. Why use hydrogen?

More information about hydrogen energy

6. Hydrogen InfoNet

From the US Department of Energy

7. Chemical Of The Week -- Hydrogen

From the University of Wisconsin-Madison

8. HHMI Laboratory Safety: Hydrogen

Information about the dangers of hydrogen