NOTHING
Not all of the elements are present in the Earth's atmosphere.
Mercury has no significant atmosphere
The most important elements in the Earth's atmosphere are N (nitrogen) and O (oxygen).
Atmosphere, but can be composed of different elements.
The Moon has no atmosphere.
All weather elements, including temperature, humidity, precipitation, wind speed, and atmospheric pressure, are found in the Earth's atmosphere. These elements are primarily observed in the troposphere, the lowest layer of the atmosphere, where weather phenomena occur. Meteorological instruments and satellites are used to measure and monitor these elements, providing data for weather forecasting and climate studies.
2
The atmosphere itself is NOT an element. The atmosphere is a mixture of all the gases around the planet. Some gases are elements, but because there is more than one gas in the atmosphere, it is a MIXTURE of elements not an element itself.
Mars has an atmosphere that's about 95% carbon dioxide.
The two dominant elements in Earth's atmosphere are nitrogen and oxygen. Nitrogen makes up about 78% of the atmosphere, while oxygen accounts for about 21%.
The chemical substances found in the atmosphere exist as gases.
oxygen, nitrogen