Neon

Kemiallinen merkki: Ne
Järjestysluku: 10
Kategoria: jalokaasut
Ryhmä: 18
Jakso: 2
Lohko: p
Moolimassa: 20,1797 g/mol
Elektronia kuorilla: 2, 8
CAS-numero: 7440-01-9
Olomuoto: kaasu
Tiheys: 0,9002 g/l (0 °C, 101,325 kPa)
Sulamispiste: 24,56 K (-248,59 °C, -415,46 °F)
Kiehumispiste: 27,07 K (-246,08 °C, -410,94 °F)
Kiderakenne: cubic face centered
Hapetusluvut: unknown
Elektronegatiivisuus: inert
Nimen alkuperä: neon
Nimen tarkoitus: a Greek word which means 'new one'
Faktoja:
- a very common element in the universe but rare on Earth
- gives a distinct reddish-orange glow when used in discharge tubes and neon lamps
- is commercially extracted from air, in which it is found in trace amounts
- is the second-lightest n
- has over 40 times the refrigerating capacity of liquid helium and three times that of liquid hydrogen (on a per unit volume basis)
- is the fifth most abundant chemical element in the universe by mass, after hydrogen, helium, oxygen, and
- is used in vacuum tubes, high-voltage indicators, lightning arrestors, wave meter tubes, television tubes, light signs, and helium-neon lasers
- liquefied neon is commercially used as a cryogenic refrigerant in applications not requiring the lower temperature range attainable with more extreme liquid helium refrigeration