English polonium meaning in English  •  polonium का अर्थ अंग्रेजी में

Noun

• A radioactive chemical element, discovered by M. and MMe. Curie in pitchblende, and originally called radium F>. It has atomic number 84 and an atomic weight of 210. It is a very rare natural element, having an abundance in uranium ores only 0.2% that o