The most dangerous of these is Polonium, the isotope of Po 210 has specific activity of
166 tera Bq for each gram. An ingested microscopic speck of 0.1 microgram would be lethal.
The specific activity of radium is greater than the specific activity of uranium and radium is more dangerous.
In this case powerful is not a correct word; radium is more radioactive and rare.
Uranium is the most reactive.
Now radium hasn't practical applications. Uranium has many applications as nuclear fuel and also in nuclear weapons and strong tank armors.
radium
Radium has not its own minerals; radium exist in extremely low concentrations in uranium and thorium ores.
Radium (Ra)
Uranium is the most reactive.
Now radium hasn't practical applications. Uranium has many applications as nuclear fuel and also in nuclear weapons and strong tank armors.
Radium is a decay product of uranium.
She discovered the elements Polonium, which was named after her homeland, and radium. Polonium is 4x more radioactive than uranium and radium is 10x more radioactive than uranium.
radium
Radium has not its own minerals; radium exist in extremely low concentrations in uranium and thorium ores.
Uranium and radium, and a number of others, are natural elements found in the ground, and they are radioactive.
Radium (Ra)
polonium, radium, plutonium and many others
Radium exist in very small concentrations in uranium ores.
Radium exist in uranium ores but in very low concentrations.
Radium was more or less discovered by accident while the Curies were looking for Uranium in samples of Pitchblende. In 1898, they discovered in tiny amounts, Polonium in July, and Radium in December.