10 Ne 20.17976
Neon
NOBLE GAS
Phase: Gas
Discovered: Morris Travers
Block: P
Summary
Neon is a chemical element with symbol Ne and atomic number 10. It is in group 18 (noble gases) of the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.
Source: WikipediaPhysical Properties
Atomic Mass 20.17976 u
Density 0.9002 g/cm³
Melting Point 24.56 K
Boiling Point 27.104 K