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Radium vs Ionium - What's the difference?

radium | ionium |

As nouns the difference between radium and ionium

is that radium is radium while ionium is (physics|dated) a supposed decomposition-product of actinium once thought to be the source of radium.

radium

English

Noun

(-) (wikipedia radium)
  • a radioactive metallic chemical element (symbol Ra) with an atomic number of 88.

    • Derived terms

    * eka-radium * radium A * radium B * radium beam * radium bomb * radium bromide * radium burn * radium C * radium C', * * radium chloride * radium clock * radium D * , radium E * radium emanation * radium F * radium fluoride * radium G * radium hydroxide * radium iodide * radiumise, radiumize * radium needle * radium oxide * radium plaque * radium sulfate, radium sulphate * radium therapy * radon

    Related terms

    * radiation * radioactive * radioactivity * radius * ray

    ionium

    English

    Noun

    (-)
  • (physics, dated) A supposed decomposition-product of actinium once thought to be the source of radium