Hydrogen (H)

Atomic number: 1
Symbol: H
Atomic weight: 1.00797
Boiling Point (C): -252.7
Melting Point (C): -259.2
Density: 0.071
heatVapor: .108
heatFusion: 0.014
Electrical Conductivity: --
Thermal Conductivity: 0.0004
Specific Heat Capacity: 3.45