Radon gas is a naturally occurring radioactive element which can be produced by the decay of radium (which in turn is part of the decay chain of uranium) present in granitic rocks and shales and also soils derived from these two rock types.
Radon.
The radioactive decay of uranium and thorium minerals in igneous rocks such as granite can cause the release of the gas Radon which is dangerous to humans. The breakdown (anaerobic decay) of biological materials in soils and rocks at shallow depths can also produce methane gas which can be explosive or potentially cause asphyxia by displacement of oxygen at high concentrations.
Radon gas is a naturally occurring radioactive element which can be produced by the decay of radium (which in turn is part of the decay chain of uranium) present in granitic rocks and shales and also soils derived from these two rock types.
which element is not released in the atmosphere
Radon
There is no such thing. There is radon gas, which is a radioactive noble gas. It is given off by some rocks and soil.
The extremely dangerous Radon (my favorite element).
radon sullfite
The geosphere primarily consists of solid rock and soil, but it can also contain pockets of gas and water within rocks or soil pores. These gases and water can be trapped underground in aquifers, rocks, or within magma chambers.
The gaseous element "radon".
Radon is a chemical element and is classified as a noble gas on the periodic table. It is a colorless, odorless, and tasteless radioactive gas that is formed naturally from the decay of uranium in soil and rocks.
Table salt is sodium chloride, NaCl. Chlorine as a gas (Cl2) is dangerous.