Sodium
Jacob Nagy
Isotopes
Sodium has 19 known isotopes. The only stable isotope is Sodium-23. The atomic mass is 23 and the atomic number is 11. The melting point is 97.72° C The boiling point is 883°C. It can be used in buffer solutions or as a antidote for cyanide poisoning. Room temperature sodium metal can be cut with a butter knife. Sodium-23 is the only stable isotope of sodium. In 1807 Sir Humphrey Davy discovered sodium-23. The relative abundance is 100%