Atomic Properties
| Atomic property | Helium | Neon | Argon | Krypton | Xenon | Radon |
|---|---|---|---|---|---|---|
| Atomic number | 2 | 10 | 18 | 36 | 54 | 86 |
| Relative atomic mass | 4.002602(2) | 20.1797(6) | 39.948(1) | 83.80(1) | 131.29(2) | (222) |
| Number of natural isotopes | 2 | 3 | 3 | 6 | 9 | (1) |
| Outer shell electron configuration | 1s2 | 2s22p6 | 3s23p6 | 4s24p6 | 5s25p6 | 6s26p6 |
| Atomic radius (pm) | 130 | 160 | 192 | 198 | 218 | – |
| Ionization energy (kJ/mol) | 2372 | 2080 | 1520 | 1351 | 1170 | 1037 |
| Static polarizability (Å3) | 0.204 | 0.392 | 1.63 | 2.465 | 4.01 | – |
| Average Valence Electron Energy (AVEE) | 4.16 | 4.79 | 3.24 | 2.97 | 2.58 | – |
Read more about this topic: Noble Gas (data Page)
Famous quotes containing the words atomic and/or properties:
“When man entered the atomic age, he opened a door into a new world. What we eventually find in that new world, nobody can predict.”
—Ted Sherdeman. Gordon Douglas. Dr. Medford (Edmund Gwenn)
“The reason why men enter into society, is the preservation of their property; and the end why they choose and authorize a legislative, is, that there may be laws made, and rules set, as guards and fences to the properties of all the members of the society: to limit the power, and moderate the dominion, of every part and member of the society.”
—John Locke (1632–1704)