Radium is a solid, radon is a gas. Both are radioactive.
Radium is slightly soluble in water, with a solubility of about 0.0001 grams per liter. It can also be dissolved in acids, forming radium salts.
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.
When radium reacts with nitrogen, it forms radium nitride. Radium nitride appears as a yellow-brown powder and is highly reactive, reacting vigorously with water to release ammonia gas.
When radium comes into contact with water, it reacts to form radium hydroxide and hydrogen gas. Radium is a highly radioactive element, so caution should be taken to avoid exposure to both the radioactive material and the chemical reaction byproducts.
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.
Radon
Radon
This noble gas is radon.
Radium is slightly soluble in water, with a solubility of about 0.0001 grams per liter. It can also be dissolved in acids, forming radium salts.
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.
When radium reacts with nitrogen, it forms radium nitride. Radium nitride appears as a yellow-brown powder and is highly reactive, reacting vigorously with water to release ammonia gas.
Chlorine gas (Cl2)