radium

As a noun radium

is radium.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between uranium and radium

is that uranium is the element with atomic number 92 and symbol u while radium is radium.

As nouns the difference between tritium and radium

is that tritium is tritium (hydrogen isotope, chemical symbol: t) while radium is radium.

As nouns the difference between polonium and radium

is that polonium is polonium (chemical element) while radium is radium.

As nouns the difference between radium and chemo

is that radium is radium while chemo is (informal) short for chemotherapy.

As nouns the difference between radium and iridium

is that radium is a radioactive metallic chemical element (symbol Ra) with an atomic number of 88 while iridium is a metallic chemical element (symbol Ir) with an atomic number of 77.

As nouns the difference between rhodium and radium

is that rhodium is a metallic chemical element (symbol Rh) with an atomic number of 45 while radium is a radioactive metallic chemical element (symbol Ra) with an atomic number of 88.

As nouns the difference between radium and vadium

is that radium is radium while vadium is (legal|archaic) a pledge or security; bail.

As nouns the difference between taxonomy and radium

is that taxonomy is the science or the technique used to make a classification while radium is radium.