Argon makes up about 0.98 percent of Earth's atmosphere. It is a colorless and odorless gas that is inert and non-reactive with other elements. Argon is commonly used in lighting, welding, and as a shielding gas in various industrial processes.
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Oxygen makes up 21 percent of the air by volume.
Nitrogen makes up about 78% of the air we breathe, with oxygen making up around 21%.
Oxygen makes up about 21% of the air we breathe.
Nitrogen makes up 78% of the air and belongs to the fifteenth group on the periodic table.
Nitrogen is the element that makes up approximately 79% of the air we breathe.