Kripton

Ang kripton (Iningles krypton) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Kr ug kaiphan nga atomik 36. Ang kripton mao ang gas nga halangdon.

Krypton
36Kr
Ar ↑ Kr ↓ Xe Periodic table bromine ← krypton → rubidium
Panagway
colorless gas, exhibiting a whitish glow in a high electric field Spectral lines of krypton
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	krypton, Kr, 36
Paglitok	/ˈkrɪptɒn/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-ton]]
Kategoriyang elemento	gas nga halangdon
Group, period, block	18, 4, p
Gibug-aton sa atomo	83.798
Kontorno sa elektron	[Ar] 3d10 4s2 4p6 2, 8, 18, 8 Electron shells of krypton (2, 8, 18, 8)
History
Pagkadiskobre	William Ramsay and Morris Travers (1898)
First isolation	William Ramsay and Morris Travers (1898)
Physical properties
Phase	gas
Density	(0 °C, 101.325 kPa) 3.749 g/L
Liquid density at b.p.	2.413[1] g·cm−3
Melting point	115.79 K, -157.36 °C, -251.25 °F
Boiling point	119.93 K, -153.22 °C, -244.12 °F
Triple point	115.775 K (-157°C), 73.2 kPa
Critical point	209.41 K, 5.50 MPa
Heat of fusion	1.64 kJ·mol−1
Heat of vaporization	9.08 kJ·mol−1
Molar heat capacity	5R/2 = 20.786 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 59 65 74 84 99 120
Atomic properties
Oxidation states	2, 1, 0
Electronegativity	3.00 (Pauling scale)
Ionization energies	1st: 1350.8 kJ·mol−1
	2nd: 2350.4 kJ·mol−1
	3rd: 3565 kJ·mol−1
Covalent radius	116±4 pm
Van der Waals radius	202 pm
Miscellanea
Crystal structure	cubic face-centered
Magnetic ordering	diamagnetic[2]
Thermal conductivity	9.43×10-3  W·m−1·K−1
Speed of sound	(gas, 23 °C) 220, (liquid) 1120 m·s−1
CAS registry number	7439-90-9
Most stable isotopes
Main article: Isotopes of krypton
iso NA half-life DM DE (MeV) DP 78Kr 0.35% >1.1×1020 y β+β+ 2.846 78Se 79Kr syn 35.04 h ε - 79Br β+ 0.604 79Br γ 0.26, 0.39, 0.60 - 80Kr 2.25% 80Kr is stable with 44 neutrons 81Kr trace 2.29×105 y ε - 81Br γ 0.281 - 82Kr 11.6% 82Kr is stable with 46 neutrons 83Kr 11.5% 83Kr is stable with 47 neutrons 84Kr 57.0% 84Kr is stable with 48 neutrons 85Kr syn 10.756 y β− 0.687 85Rb 86Kr 17.3% 86Kr is stable with 50 neutrons
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