Periodic Table/Hydrogen/³H

← 2H4H →

³H

Hydrogen-3

Radioactive· Half-life: 12.3 y

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

1

Neutrons (N)

2

Mass Number (A)

3

Atomic Mass

3.016049AMU

Spin / Parity

1/2+

Binding E/A

2.657keV

Natural Abundance

Trace / None

Half-life

12.3 y

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁻

100.0%

Decay Chain

³HHydrogen12.3 y

β⁻100.0%

³HeHeliumSTABLE

2-step decay chain → stable · Primary path shown

Other Isotopes of Hydrogen

← Back to HydrogenData: IAEA NDS · ENSDF