#10
Ne
Neon
20.18 u

Neon

Noble Gas
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Properties

Symbol Ne
Atomic Number 10
Atomic Mass 20.18
Protons 10
Neutrons 10
Electrons 10
Type Noble Gas
Isotopes Neon-20, Neon-21, Neon-22
Discovery Year 1898
Discovered By William Ramsay
Group 18
Period 2
Boiling Point -411°F
Melting Point -415.5°F
Electron Configuration [He] 2s² 2p⁶
Density (g/cm³) 0.0008999
Crystal Structure Face-centered cubic
Magnetism Diamagnetic
Abundance in Earth's Crust 0.0018%
Phase at Room Temperature Gas
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