What is the volume percentage of argon in air?

The volume percentage of argon in air is approximately 0.96%. This value represents the proportion of argon gas, which is a noble gas, in the Earth's atmosphere. Air is primarily composed of nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases, including argon, carbon dioxide, and others.

Argon makes up a small fraction of the atmosphere, primarily due to its inert nature and high stability, making it less reactive than other gases, leading to its relatively constant presence in the air. The answer of 0.96% accurately reflects the typical composition of dry air, highlighting argon's role as a minor yet notable component of our atmosphere.