Isotopes of the Element Beryllium
[Click for Main Data]

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 Beryllium with a Known Natural Abundance

All Known Isotopes of the Element Beryllium

Mass Number	Half-life	Decay Mode	Branching Percentage

5	No Data Available	Proton Emission	No Data Available

6	4.96848×10^-21 seconds	Alpha Decay	100.00

		Double Proton Emission	No Data Available

7	53.22 days	Electron Capture	100.00

8	6.72206×10^-17 seconds	Alpha Decay	100.00

9	Stable	-	-

10	1.51×10⁺⁶ years	Beta-minus Decay	100.00

11	13.81 seconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Alpha Decay	3.1

12	21.3 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	<= 1.00

13	2.7×10^-21 seconds	Neutron Emission	No Data Available

14	4.35 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	81.00

		Beta-minus Decay	5.00

This page is maintained by Steve Gagnon.

Isotopes of the Element Beryllium[Click for Main Data]