It's Elemental - Isotopes of the Element Zirconium

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Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.

Isotopes of the Element Zirconium with a Known Natural Abundance

Mass Number	Natural Abundance	Half-life

90	51.45%	Stable

91	11.22%	Stable

92	17.15%	Stable

94	17.38%	Stable

96	2.80%	> 2.2×10⁺¹⁹ years

All Known Isotopes of the Element Zirconium

Mass Number	Half-life	Decay Mode	Branching Percentage

79	56 milliseconds	Electron Capture	No Data Available

		Electron Capture with delayed Proton Emission	No Data Available

80	3.9 seconds	Electron Capture	No Data Available

81	5.5 seconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	0.12

82	32 seconds	Electron Capture	100.00

83	41.6 seconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	No Data Available

84	25.9 minutes	Electron Capture	100.00

85	7.86 minutes	Electron Capture	100.00

85_m	10.9 seconds	Isomeric Transition	<= 92.00

		Electron Capture	> 8.00

86	16.5 hours	Electron Capture	100.00

87	1.68 hours	Electron Capture	100.00

87_m	14.0 seconds	Isomeric Transition	100.00

88	83.4 days	Electron Capture	100.00

89	78.41 hours	Electron Capture	100.00

89_m	4.161 minutes	Isomeric Transition	93.77

		Electron Capture	6.23

90	Stable	-	-

90_m	809.2 milliseconds	Isomeric Transition	100.00

91	Stable	-	-

91_m	4.35 microseconds	Isomeric Transition	100.00

92	Stable	-	-

93	1.53×10⁺⁶ years	Beta-minus Decay	100.00

94	Stable	-	-

95	64.032 days	Beta-minus Decay	100.00

96	> 2.2×10⁺¹⁹ years	Double Beta-minus Decay	No Data Available

97	16.744 hours	Beta-minus Decay	100.00

98	30.7 seconds	Beta-minus Decay	100.00

99	2.1 seconds	Beta-minus Decay	100.00

100	7.1 seconds	Beta-minus Decay	100.00

101	2.3 seconds	Beta-minus Decay	100.00

102	2.9 seconds	Beta-minus Decay	100.00

103	1.3 seconds	Beta-minus Decay	100.00

104	1.2 seconds	Beta-minus Decay	100.00

105	0.6 seconds	Beta-minus Decay	100.00

106	> 150 nanoseconds	Beta-minus Decay	No Data Available

107	≈ 150 milliseconds	Beta-minus Decay	100.00

108	80 milliseconds	Beta-minus Decay	No Data Available

		Beta-minus Decay with delayed Neutron Emission	No Data Available

109	> 150 nanoseconds	Beta-minus Decay	No Data Available

		Beta-minus Decay with delayed Neutron Emission	No Data Available

110	> 150 nanoseconds	Beta-minus Decay	No Data Available