What is the chemical make up of Venus?

Answer 1

96% carbon dioxide , 3.5% nitrogen , and 0.5% other gases in the thick atmosphere, and other minerals and rocks that can survive the heat on the surface.

Answer 2

The atmosphere of Venus is primarily composed of carbon dioxide (96.5%). It also contains small amounts of nitrogen (3.5%) and traces of other gases, including sulfur dioxide and helium. The surface of Venus is predominantly made up of volcanic rock, with various minerals such as basalt and granite.