I’m sorry, but it seems there’s a misunderstanding in our discussion. Be3H2O2 is not the chemical formula of an actual substance. In chemistry, this formula does not follow the rules to form a stable substance.
Beryllium (Be) usually has a valence state of +2, meaning it wants to share or lose two electrons to complete its outer electron shell. Meanwhile, Hydrogen (H) and Oxygen (O) typically have valence states of +1 and -2 respectively.
Therefore, a reasonable compound between Be, H, and O could be Be(OH)2, or beryllium hydroxide, a white solid with strong alkaline properties. If you want to know more about Be(OH)2 or another substance, please let me know!