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Radon is a noble gas (non-metal) in the Periodic Table so it appears in the atmosphere as radioactive gas with a quantity of about 0.01%.
the standard state of Radon is gas in atmosphere so it is placed in periodic table as gas...the gas exist since billion of years and history of periodic table is thousands of years....
What else can I help you with?
Is Radons Classification Nonmetal metal or metalloid?
metal
What is radons use in construction?
Any use, radon is a radioactive and very dangerous gas !
What is the standard state of magnesium?
The standard state of magnesium is solid.
What standard state is hydrogen?
Standard State ( STP / Standard Temperature and Pressure) is 25 o C and 760 mmHg For hydrogen in these considtions it is a GAS.
What is the chemical formula of lead in its standard state?
The chemical symbol for lead in its standard state is Pb.
What is the standard state of uranium-238?
solid is the standard
What is aluminum's standard state?
Aluminum's standard state is solid at room temperature and pressure.
What is the standard state for nitrogen?
The standard state for nitrogen is a gas at 25 degrees Celsius and 1 atmosphere pressure.
What is Iron FE standard state?
The standard state of iron is solid, but it can be melted into a liquid.
What is chlorine standard state?
Chlorine's standard state is a gas at room temperature and pressure. It exists as diatomic molecules (Cl2).
What standard state is fluorine?
gas
What is standard state of selenium?
solid
