Rutherfordium is radioactive and a solid, liquid, and gas;)
At room temperature radium is a solid alkaline earth metal, very radioactive.
Rutherfordium is a solid.
Radium is a solid, radon is a gas. Both are radioactive.
Radium is a solid, radioactive, alkaline earth metal.
Radium is a radioactive chemical element, very dangerous, an alpha radiations emitter; radium is also a source of radon, by decay - also radioactive and dangerous gas.
I don't know about radon, but xenon gas, also a noble gas, is an anion when it makes compounds, as rarely as it does.
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.
A gas at ordinary temperatures and pressures.
Radium is a solid, radon is a gas. Both are radioactive.
To avoid the oxydation of radium (as a metal).
The boiling pint of radium is 1 737 0C.
Radium is a solid, radioactive, alkaline earth metal.
Radon
Radon
This noble gas is radon.
Radium is a radioactive chemical element, very dangerous, an alpha radiations emitter; radium is also a source of radon, by decay - also radioactive and dangerous gas.
Xenon is a noble gas so it doesn't bond, but radium bonds pretty well Xenon is the only noble gas that bonds with a other element.
I don't know about radon, but xenon gas, also a noble gas, is an anion when it makes compounds, as rarely as it does.
Chlorine gas (Cl2)