Radon
Nothing abnormal; radon is also a noble gas and radioactive.
Xenon gas even though it is not radioactive.
no. Radon is a radioactive gas.
Element 36 is Krypton and is a radioactive gas.
As radioactive element is an element that is on the Priodic Table of Elements. A Radioactive Element is usually radioactive.
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.
Ununoctium is an artificial radioactive element, first time prepared in 2006.
Radium is a radioactive chemical element, very dangerous, an alpha radiations emitter; radium is also a source of radon, by decay - radon (gas) is also a radioactive element.
No, it is not radioactive.
Yes it is a gas! Ununoctium is a radioactive chemical element which is classified in the noble gases on the periodic table of elements. It is also presumed to be a colourless gas! =]