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Helium (He) Element

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Basic Information
Name: Helium
Symbol: He
Atomic Number: 2
Atomic Mass: 4.002602 amu
Melting Point: -272.0 ??C (1.15 ??K, -457.6 ??F)
Boiling Point: -268.6 ??C (4.549994 ??K, -451.48 ??F)
Number of Protons/Electrons: 2
Number of Neutrons: 2
Classification: Noble Gas
Crystal Structure: Hexagonal
Density @ 293 K: 0.1785 g/cm3
Color: colorless

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