What are polonium and radium?

Answer 1

Radium and polonium are natural radioactive chemical elements, discovered by Pierre and Marie Curie in 1898.

Answer 2

Polonium is a rare radioactive element with symbol Po and atomic number 84. It was discovered by Marie Curie and her husband Pierre Curie in 1898. Radium is another radioactive element with symbol Ra and atomic number 88. It is also discovered by Marie Curie, and both polonium and radium are highly toxic and carcinogenic.

Answer 3

Polonium and radium are two natural chemical elements discovered in 1898 by Marie and Pierre Curie; the two elements are radioactive.

Answer 4

Polonium and radium are natural chemical elements, metals, solid, very radioactive.