Which of the following rare gases is the most abundant in the Earth's atmosphere?
Identifying Most Abundant Rare Gas in Atmosphere
This question requires identifying the rare gas with the highest concentration in the Earth's atmosphere from the given options.
Understanding Rare Gases in the Atmosphere
Rare gases, also known as noble gases, are chemically inert elements found in trace amounts in the atmosphere. The primary noble gases present are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), and Xenon (Xe).
Their atmospheric abundances differ significantly:
| Rare Gas | Symbol | Approx. Concentration (ppm) | Approx. Concentration (%) |
|---|---|---|---|
| Argon | Ar | 9340 | 0.934% |
| Neon | Ne | 18 | 0.0018% |
| Helium | He | 5 | 0.0005% |
| Krypton | Kr | 1 | 0.0001% |
Determining the Most Abundant Rare Gas
Comparing the approximate concentrations:
- Argon has the highest concentration at about 0.934%.
- Neon follows with about 0.0018%.
- Helium is present at about 0.0005%.
- Krypton has the lowest concentration among these, at about 0.0001%.
Therefore, Argon is the most abundant rare gas in the Earth's atmosphere among the choices provided.
Important Questions from Principles Of Stratigraphy
- Which one of the following molecules is the most buoyant in the atmosphere?
In the above diagram, A, B and C represent, respectively, the tropospheric concentrations of
- Oxygen atom required to form tropospheric ozone comes from
- Atmospheric layers where convection takes place are
Radiocarbon, used for dating sediments, is produced at the top of the Earth's atmosphere by the
