10
Ne
Neon
20.17976
28
#10
Neon
noble gas· Gas·20.17976 u
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.
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Identity
- Symbol
- Ne
- Atomic Number
- 10
- Atomic Mass
- 20.17976 u
- Category
- noble gas
- Block
- p-block
- Period
- 2
- Group
- 18
- Appearance
- colorless gas exhibiting an orange-red glow when placed in a high voltage electric field
- Year Discovered
- 1898 CE
- Discovered By
- Morris Travers
- Named By
- novelty
Electrons
- Configuration
- [He] 2s2 2p6
- Full Configuration
- 1s2 2s2 2p6
- Shells
- 2, 8
- Electronegativity
- n/a
- Electron Affinity
- -116
- Oxidation States
- 0
- Ionization Energies
- 2080.7, 3952.3, 6122, 9371, 12177 … +5 more
Physical Properties
- State at
- Gas
- Melting Point
- 24.56
- Boiling Point
- 27.104
- Density
- 0.9002
- Crystal Structure
- FCC
- Magnetic Ordering
- Diamagnetic
Mechanical
- Atomic Radius
- 38 pm
- Covalent Radius
- 67 pm
- Van der Waals
- 154 pm
Thermal & Electrical
- Thermal Conductivity
- 0.0491 W/(m K) W/(m·K)
- Specific Heat
- 1030 J/(kg K) J/(g·K)
- Heat of Vaporization
- 1.73 kJ/mol kJ/mol
- Heat of Fusion
- 0.335 kJ/mol kJ/mol
Abundance
- Universe
- 1340 ppm
- Sun
- 1000 ppm
- Meteorite
- 0
- Earth's Crust
- 1.444 ppm
- Ocean
- 120 ppt
- Human Body
- 0