మూస:క్రిప్టాన్ మూలకము

క్రిప్టాన్, ₀₀Kr
	A krypton-filled discharge tube glowing white
క్రిప్టాన్
Pronunciation	/ˈkrɪptɒn/ (KRIP-ton)
Appearance	colorless gas, exhibiting a whitish glow in a high electric field
Standard atomic weight Ar°(Kr)
	83.798±0.002; 83.798±0.002 (abridged);
క్రిప్టాన్ in the periodic table
	బ్రోమిన్ ← క్రిప్టాన్ → రుబీడియం
Group	మూస:Infobox element/symbol-to-group/format
Period	period 4
Block	p-block
Electron configuration	[Ar] 3d10 4s2 4p6
Electrons per shell	2, 8, 18, 8
Physical properties
Phase at STP	gas
Melting point	115.78 K (-157.37 °C, -251.27 °F)
Boiling point	119.93 K (-153.415 °C, -244.147 °F)
Density (at STP)	3.749 g/L
when liquid (at b.p.)	2.413 g/cm3
Triple point	115.775 K, 73.53 kPa
Critical point	209.48 K, 5.525 MPa
Heat of fusion	1.64 kJ/mol
Heat of vaporization	9.08 kJ/mol
Molar heat capacity	5R/2 = 20.786 J/(mol·K)
Atomic properties
Oxidation states	0, +1, +2 (rarely more than 0; oxide is unknown)
Electronegativity	Pauling scale: 3.00
Covalent radius	116±4 pm
Van der Waals radius	202 pm
	Spectral lines of క్రిప్టాన్
Other properties
Natural occurrence	primordial
Crystal structure	face-centered cubic (fcc)
Speed of sound	(gas, 23 °C) 220, (liquid) 1120 m/s
Thermal conductivity	9.43×10-3 W/(m⋅K)
Magnetic ordering	diamagnetic
CAS Number	7439-90-9
History
Discovery	William Ramsay and Morris Travers (1898)
First isolation	William Ramsay and Morris Travers (1898)
Isotopes of క్రిప్టాన్ v; e;
	Template:infobox క్రిప్టాన్ isotopes does not exist
	Category: క్రిప్టాన్; view; talk; edit; \| references

References

↑ "Standard Atomic Weights: Krypton". CIAAW. 2001.
↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
↑ Krypton. encyclopedia.airliquide.com
↑ ^4.0 ^4.1 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.121. ISBN 1439855110.
↑ "Section 4, Properties of the Elements and Inorganic Compounds; Melting, boiling, triple, and critical temperatures of the elements". CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, Florida: CRC Press. 2005.
↑ Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

[1] "Standard Atomic Weights: Krypton". CIAAW. 2001.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[3] Krypton. encyclopedia.airliquide.com

[b92-4] 4.0 ^4.1 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.121. ISBN 1439855110.

[5] "Section 4, Properties of the Elements and Inorganic Compounds; Melting, boiling, triple, and critical temperatures of the elements". CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, Florida: CRC Press. 2005.

[6] Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

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