Table of Contents
What type of element is radon?
noble gases
radon (Rn), chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium. (Radon was originally called radium emanation.) Radon is a colourless gas, 7.5 times heavier than air and more than 100 times heavier than hydrogen.
What is the parent element of radon?
In 1957, the name radon, formerly the name of only radon-222, became the name of the element. Owing to its gaseous nature and high radioactivity, radon-222 is one of the leading causes of lung cancer….Radon-222.
| General | |
|---|---|
| Parent isotopes | 226Ra (α) |
| Decay products | 218Po |
| Isotope mass | 222.0175763 u |
| Spin | 0 |
Is radon a metal?
The chemical element radon is classed as a noble gas and a nonmetal. It was discovered in 1900 by Fredrich E….Data Zone.
| Classification: | Radon is a noble gas and a nonmetal |
|---|---|
| Atomic weight: | (222), no stable isotopes |
| State: | gas |
| Melting point: | -71 oC, 202 K |
Who created radon element?
Friedrich Ernst Dorn
Radon was discovered by Friedrich Ernst Dorn, a German chemist, in 1900 while studying radium’s decay chain. Originally named niton after the Latin word for shining, “nitens,” it has been known as radon since 1923.
What period is radon?
6
Fact box
| Group | 18 | Melting point |
|---|---|---|
| Period | 6 | Boiling point |
| Block | p | Density (g cm−3) |
| Atomic number | 86 | Relative atomic mass |
| State at 20°C | Gas | Key isotopes |
Why does radon occur?
Radon comes from the breakdown of naturally-occurring radioactive elements (such as uranium and thorium) in soils and rocks. The gas moves up through the soil to the surface, where it can enter homes, schools and the workplace through cracks and other holes in the foundation.