These elements were discovered, not invented.
Polonium was discovered by Marie Curie and Pierre Curie in 1898.
Radium was discovered by Marie Curie, Pierre Curie and G. Bemont also in 1898. Studying residues of uranium ores Marie Curie and Pierre Curie found that these residues are more radioactive than uranium; they attributed this radioactivity to unknown elements. They isolated these elements and named these elements polonium and radium.
- Chemical elements are discovered or prepared, not invented.- Polonium and radium have useful applications.
Radium and polonium are radioactive natural chemical elements.
Yes, radium and polonium are radioactive elements.
Polonium and radium are radioactive elements and toxic; they are dangerous.
Both radium and polonium are radioactive elements and are not stable.
Polonium and radium are radioactive chemical elements but they have not the same properties.
Polonium (Po) and radium (Ra) are two different chemical elements.
Polonium and radium are natural chemical elements, metals, solid, very radioactive.
For radium and polonium the word "invented" is not correct; you must use "discovered".Studying residues of uranium ores Marie Curie and Pierre Curie found that these residues are more radioactive than uranium; they attributed this radioactivity to unknown elements. They isolated these elements and named these elements polonium and radium.
she discovered radium along with her husband Pierre
Marie Curie discovered the elements polonium and radium in 1898. She was the first person to isolate polonium and radium from natural sources and conducted groundbreaking research on radioactivity.
Radium is a chemical element Polonium is a chemical element Those two were discovered by Marie Curie