Kr - Krypton

	Atomic number	-	36			Density	g/mL	3	.74
	Atomic weight	u	83	.8		Melting point	K	115	.78
	Bonding radius	A	1	.12		Boiling point	K	119	.8
	Atomic radius	A	1	.03		Heat of vaporization	kJ/mol	9	.029
	Ionization Potential	V	13	.999		Heat of fusion	kJ/mol	1	.638
	Electronegativity	-	-			Specific heat	J/gK	0	.248
	The oxide is unknown.					Crystal are face centered cubic.
	Electron config. : [Ar] 3d10 4s2 4p6

Isotopes of Kr: Click mass number for decay process, product for element page.

 

071 97 msec EC/ECp,10.500 Br-71/Se-70 70.950509	072 17.2 sec EC,5.040 MeV Br-72 71.941921	073 27.0 sec EC/ECp,6.670 Br-73/Se-72 72.938926	074 11.50 min EC,3.140 MeV Br-74 73.933257	075 4.3 min EC,4.899 MeV Br-75 74.931035	076 14.8 hr EC,1.311 MeV Br-76 75.925950	077 74.4 min EC,3.064 MeV Br-77 76.924669
078 0.35% 2.0E+21 yr ,3.574 MeV 77.920388	079 35.04 hr EC,1.626 MeV Br-79 78.920083	080 2.25% Stable 79.916378	081 2.29E+5 yr EC,1.688 MeV Br-81 80.916592	082 11.6% Stable 81.913484	083 11.5% Stable 82.914136	084 57.0% Stable 83.911507
085 3934.4 da B-,2.870 MeV Rb-85 84.912529	086 17.3% Stable 85.910615	087 76.3 min B-,3.887 MeV Rb-87 86.913358	088 2.84 hr B-,2.914 MeV Rb-88 87.914451	089 3.15 min B-,4.990 MeV Rb-89 88.917637	090 32.32 sec B-,4.392 MeV Rb-90 89.919527	091 8.57 sec B-,6.440 MeV Rb-91 90.923402
092 1.840 sec B-/B-n,5.987 Rb-92/Rb-91 91.926111	093 1.286 sec B-/B-n,8.600 Rb-93/Rb-92 92.931260	094 0.20 sec B-/B-n,7.300 Rb-94/Rb-93 93.934299	095 0.78 sec B-,9.800 MeV Rb-95 94.939881	097 150 nsec B-,9.800 MeV Rb-97 97.0	MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass