Tags: Chemical Compound, Chemical Substance.
Sodium polonide is a chemical compound with the formula Na2Po. It is a polonide a set of very chemically stable compounds of polonium. Due to the difference in electronegativity (ΔEN) between sodium and polonium (≈ 1.1 under the Pauling system) and the slight non-metallic character of polonium it is intermediate between intermetallic phases and ionic compounds.