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The Periodic Table of Elements

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Isotopes of the Element Hydrogen
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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 Hydrogen with a Known Natural Abundance

Mass Number		Natural Abundance		Half-life

1		99.985%		Stable

2		0.015%		Stable

All Known Isotopes of the Element Hydrogen

Mass Number		Half-life		Decay Mode		Branching Percentage

1		Stable		-		-

2		Stable		-		-

3		12.32 years		Beta-minus Decay		100.00

4		9.93696×10^-23 seconds		Neutron Emission		100.00

5		8.01930×10^-23 seconds		Neutron Emission		100.00

6		3.26500×10^-22 seconds		Triple Neutron Emission		No Data Available

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