Kriptono
36
Kr
Grupo
18
Perio
4
Bloko
p
Protonoj
Elektronoj
Neŭtronoj
36
36
48
Ĝeneralaj Propraĵoj
Atoma Nombro
36
Atommaso
83,798
Amasa Nombro
84
Kategorio
Noblaj gasoj
Koloro
Senkolora
Radioaktiva
Ne
From the Greek word kryptos, hidden
Kristala Strukturo
Vizaĝo Centrita Kubo
Historio
Scottish chemist Sir William Ramsay and his assistant English chemist Morris Travers discovered krypton in 1898 in London.
They found krypton in the residue left from evaporating nearly all components of liquid air.
William Ramsay was awarded the 1904 Nobel Prize in Chemistry for discovery of a series of noble gases, including krypton.
They found krypton in the residue left from evaporating nearly all components of liquid air.
William Ramsay was awarded the 1904 Nobel Prize in Chemistry for discovery of a series of noble gases, including krypton.
Elektronoj per ŝelo
2, 8, 18, 8
Elektrona Agordo
[Ar] 3d10 4s2 4p6
When ionized, krypton gas emits bright white light
Fizikaj Propraĵoj
Fazo
Gasa
Denso
0,003733 g/cm3
Fandpunkto
115,79 K | -157,36 °C | -251,25 °F
Bolpunkto
119,93 K | -153,22 °C | -243,8 °F
Varmo de Fuzio
1,64 kJ/mol
Varmo de Vaporiĝo
9,02 kJ/mol
Specifa Varmo Kapacito
0,248 J/g·K
Krusta Abundo
1,5×10-8%
Universa Abundo
4×10-6%
CAS Nombro
7439-90-9
PubChem Kunmetita Identiga Nombro
5416
Atomaj Propraĵoj
Atoma Radiuso
88 pm
Kovalenta Radiuso
116 pm
Elektronegativeco
3,00 (Pauling-skalo)
Potencialo de jonigo
13,9996 eV
Atoma Volumo
38,9 cm3/mol
Termika Kondukto
0,0000949 W/cm·K
Oksidaj Ŝtatoj
2
Aplikoj
Krypton is used in certain photographic flash lamps for high-speed photography.
Krypton-83 has application in magnetic resonance imaging (MRI) for imaging airways.
Krypton is used as a filling gas for energy-saving fluorescent lights and as an inert filling gas in incandescent bulbs.
Krypton-83 has application in magnetic resonance imaging (MRI) for imaging airways.
Krypton is used as a filling gas for energy-saving fluorescent lights and as an inert filling gas in incandescent bulbs.
Krypton is considered to be non-toxic
Izotopoj
Stabilaj Izotopoj
78Kr, 80Kr, 82Kr, 83Kr, 84Kr, 86KrMalstabilaj Isotopoj
69Kr, 70Kr, 71Kr, 72Kr, 73Kr, 74Kr, 75Kr, 76Kr, 77Kr, 79Kr, 81Kr, 85Kr, 87Kr, 88Kr, 89Kr, 90Kr, 91Kr, 92Kr, 93Kr, 94Kr, 95Kr, 96Kr, 97Kr, 98Kr, 99Kr, 100Kr, 101Kr