Radon
radium
Radium (Ra)
uranium is a radioactive substance which can cause mutations in cell while potassium is non-radioactive. in fact it is required in our body for transmission of nerve impulse and osmoregulation. ----------- Potassium-40 is also radioactive ! But uranium is also a toxic element and as a radioactive element is more dangerous that potassium (alpha particle emitter, gamma irradiation, radioactive descendents as radon).
Radium (Ra)
polonium, radium, plutonium and many others
she and her husband discovered Radium- a substance 100 times more radioactive than uranium
radium
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.
Radium (Ra)
uranium is a radioactive substance which can cause mutations in cell while potassium is non-radioactive. in fact it is required in our body for transmission of nerve impulse and osmoregulation. ----------- Potassium-40 is also radioactive ! But uranium is also a toxic element and as a radioactive element is more dangerous that potassium (alpha particle emitter, gamma irradiation, radioactive descendents as radon).
Radium (Ra)
Depleted uranium is approx. 60% less radioactive than an equivalent mass of natural uranium.
No. The Curies did not discover uranium. They discovered polonium and radium, of which polonium is more radioactive.
Polonium and radium are discovered in wastes from uranium minerals, after uranium separation. The important radioactivity of these residues (without uranium) warned the two about the possible existence of other radioactive elements.
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.
Uranium exist in nature as minerals and ores; more than 200 uranium minerals are known today.
1. Uranium is a possible polluting agent of the natural environment. 2. Uranium is a toxic and a radioactive chemical element. 3. Uranium release radium and radon. 4. Radioactive wastes are dangerous and need to be isolated. Plutonium: the same characteristics, but it is more toxic and radioactive. Hydrogen: it is a cause of severe explosions.