Zr - Zirconium

	Atomic number	-	40			Density	g/mL	6	.49
	Atomic weight	u	91	.22		Melting point	K	2125
	Bonding radius	A	1	.45		Boiling point	K	4682
	Atomic radius	A	2	.16		Heat of vaporization	kJ/mol	590	.88
	Ionization Potential	V	6	.84		Heat of fusion	kJ/mol	16	.9
	Electronegativity	-	1	.33		Specific heat	J/gK	0	.27
	The oxide is amphoteric.					Crystal are hexagonal.
	Electron config. : [Kr] 4d2 5s2

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

081 15 sec EC/ECp,7.200 Y-81/Sr-80 80.936768	082 32 sec EC,4.000 MeV Y-82 81.931078	083 44 sec EC/ECp,5.870 Y-83/Sr-82 82.928652	084 25.9 min EC,2.670 MeV Y-84 83.923252	085 7.86 min EC,4.690 MeV Y-85 84.921470	086 16.5 hr EC,1.470 MeV Y-86 85.916467	087 1.68 hr EC,3.665 MeV Y-87 86.914815
088 83.4 da EC,3.623 MeV Y-88 87.910224	089 78.41 hr EC,2.832 MeV Y-89 88.908889	090 51.45% Stable 89.904702	091 11.22% Stable 90.905643	092 17.15% Stable 91.905038	093 1.53E+6 yr B-,2.893 MeV Nb-93 92.906475	094 17.38% Stable 93.906314
095 64.02 da B-,1.125 MeV Nb-95 94.908042	096 2.80% 3.9E19 yr 2B-,3.350 MeV Mo-96 95.908275	097 16.90 hr B-,2.658 MeV Nb-97 96.910949	098 30.7 sec B-,2.261 MeV Nb-98 97.912757	099 2.1 sec B-,4.558 MeV Nb-99 98.916509	100 7.1 sec B-,3.340 MeV Nb-100 99.917755	101 2.1 sec B-,5.490 MeV Nb-101 100.92113
102 2.9 sec B-,4.610 MeV Nb-102 101.92298	103 1.3 sec B-,6.950 MeV Nb-103 102.92659	104 1.2 sec B-,5.900 MeV Nb-104 103.92882	105 1 sec B-,8.500 MeV Nb-105 104.93301	MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass