Sodium-22 (Na-22)

Identity

Protons

11

Neutrons

11

Mass number

22

Mass

21.99 ± 0.14 u

Mass excess

-5.181 MeV

Spin

3+*

Stability

Half-life: 2.6 years

Natural occurrence

Not found in nature

Decays to

• positron emission 90.6 % → Ne-22
• electron capture 9.4 % → Ne-22