Here's a breakdown of the major components:
* Carbon Dioxide (CO2): 95%
* Nitrogen (N2): 2.7%
* Argon (Ar): 1.6%
* Oxygen (O2): 0.13%
* Other gases (water vapor, carbon monoxide, neon, krypton, xenon): Trace amounts
It's important to note that Mars' atmosphere is significantly thinner than Earth's, with a pressure about 100 times lower. This means it provides very little protection from radiation and is too thin to support liquid water on the surface.
