10
Ne
Neon
Noble gas period 2 group 18 p-block discovered: 1898
As a chemical element
Properties of the atom — they do not depend on what substance it is part of.
- Atomic number
- 10
- Atomic mass
- 20.180 a.m.u.
- Electron configuration
- [He]2s2 2p6
- Atomic radius
- 154 pm
- Ionization energy
- 21.565 eV
- Oxidation states
- 0
As a simple substance
Properties of the substance these atoms form under ordinary conditions.
- State at 25 °C
- Gas
- Melting point
- 24.56 K (-248,59 °C)
- Boiling point
- 27.07 K (-246,08 °C)
- Density
- 0.0008999 g/cm³
Materials about this element
-
5.4. Аргоноиды
Book page
Лайнус Полинг, Питер Полинг - Химия
Первый элемент в периодической таблице, водород, химически активен и образует огромное число соединений.