Md
Mendelevium-249m
Protons (Z)
101
Neutrons (N)
148
Mass number
249
Half-Life
1.9 s
Abundance
---
Mass
249.083 u
Mass Excess
77,280.0 keV
Spin
(1/2-)
Discovered
2001
Binding energy per nucleon
7,444 keV
Neutron separation energy
7,741 keV
Proton separation energy
1,907 keV
Decay Mode
- α→Einsteinium-245100%
Decay chain
- MdMendelevium-249Z 101 · N 1481.9 s
- α100%
- β⁺51%
- β⁺64.7%
- EC99.88%
- α~100%
- β⁻~100%
- α~100%
- α~100%
- β⁻100%
- α~100%
- α100%
- β⁻100%
- α~100%
- α~100%
- α99.992%
- β⁻97.91%
- α100%
- β⁻100%
- α100%