Helium
2
He
Helium
Properties
Atomic Number:
2
Atomic Symbol:
He
Atomic Mass:
4.002602u
CAS No:
7440-59-7
Density:
0.1785 g/l
Series:
Noble Gas
Boiling Point:
1,627°C
Thermal Conductivity:
0.001513 W/cm °C
Heat of Fusion:
0.02 kJ/mol
Heat of Vaporization:
0.083 kJ/mol
Electronegativity:
2.2 pauling
Crystal Structure:
Cubic
| Item # | Product | Formula | CAS # |
|---|---|---|---|
| We do not currently manufacture any products that incorporate this element. | |||