First, the argon is a chemical element and the third-most abundant gas in the Earth's atmosphere (approximatively 1%). And I know that when someone inhales a large amount of argon, there is a risk of asphyxiation by anoxia, but that's not what i'm looking for.
So, i would like to know if there is any species that when they get in contact or breathe it they die, or something similar (getting sickness which lead to a dead state).
I would like to know if there is any others chemicals elements/materials who can be destroyed by the Argon.
And if possible, could you tell me what kind of objects are mostly made of Argon ?