polonium, radium, plutonium and many others
radium
Radium (Ra)
Radium (Ra)
Plutonium is approximately 900 times more radioactive than pure uranium. Plutonium is a radioactive element that is found in trace amounts in uranium ores, and it is used in nuclear reactors and weapons due to its high radioactivity.
Uranium is radioactive, and contamination of water, air or the human system can be fatal or permanently mutate a person or living animal's body, therefore, it is advised not to use uranium and instead use some safer resource.
radium
Radium (Ra)
Radium (Ra)
Uranium is a radioactive element; uranium is also a toxic element. But the nuclear energy based on uranium is cleaner than the energy based on coal or oil.
radium
Plutonium is approximately 900 times more radioactive than pure uranium. Plutonium is a radioactive element that is found in trace amounts in uranium ores, and it is used in nuclear reactors and weapons due to its high radioactivity.
Studying residues of uranium ores Marie Curie found that these residues are more radioactive than uranium; she attributed this radioactivity to an unknown element. She isolated this element and named this element polonium.
Many radioactive isotopes are more radioactive than the naturally occurring uranium isotopes:All fission product isotopes are more radioactive (e.g. iodine-131, strontium-90)Most radioactive isotopes in the uranium --> lead decay chain are more radioactive (e.g. radium, radon, polonium)Plutonium is more radioactiveTritium is more radioactiveCarbon-14 is more radioactiveArtificially produced uranium isotopes are more radioactive (e.g. uranium-233, uranium-236)etc.
Depleted uranium is approx. 60% less radioactive than an equivalent mass of natural uranium.
All elements have radioactive isotopes. Add a couple of hundred neutrons, and any stable element becomes radioactive.Technetium, promethium, and anything heavier than bismuth (element 83) will have radioactive decay.radio active elements can be uranium,radium,thorium,polonium,actinium etc.usually all elements of atomic number higher than 82 show radioactivity.
Polonium is more radioactive than uranium, as it emits alpha particles that are highly energetic. However, uranium is more explosive due to its ability to undergo fission reactions, which release a large amount of energy quickly.
Studying residues of uranium ores Marie Curie found that these residues are more radioactive than uranium; she attributed this radioactivity to a new element. She isolated this element and named polonium.