Radium
1. Radium was used in the past for the radiotherapy of some cancers. 2. But because radium is strongly radioactive uncontrolled irradiation or contamination with radium can lead to some cancers.
radioactive decay
Nobelium is not found in nature. It is a synthetic radioactive element.
Radon and radium are radioactive.
no because if it was we wouldn't use it if it was radioactive
NO
There is no group specified so it is not possible to be sure about this answer but all isotopes of promethium are radioactive.
As radioactive element is an element that is on the Priodic Table of Elements. A Radioactive Element is usually radioactive.
Madame Marie Curie was a scientist, and she was known for discovering a few chemical elements. One of them was polonium, which was named after her native country.She dealt with radiation and radioactive things, and ended up discovering the element thoruim was radioactive.
1. Radium was used in the past for the radiotherapy of some cancers. 2. But because radium is strongly radioactive uncontrolled irradiation or contamination with radium can lead to some cancers.
non radioactive element
A radioactive element is one that discharges radiation. Uranium is a radioactive element. A radioactive element is very dangerous if you don't have protective clothing. You should never go near a radioactive element.
No, it is not radioactive.
radioactive decay
The radioactive element is composed of unstable nuclei that try to reach stability through emitting nuclear radiations as alpha, beta, and gamma nuclear radiations.
It's a semantic thing - by definition, if something gives out radiation, then it is radioactive. If an element gives off radiation, then it is a 'radioactive' element. If it does not give out radiation, then it is not 'radioactive'.
Probably uranium is the best known radioactive element.