Final answer:
The compound B₂H₆ is known as Diborane, which is a boron hydride compound consisting of two boron and six hydrogen atoms.
Step-by-step explanation:
The name for the compound B₂H₆ is Diborane. Diborane is a compound consisting of two boron (B) atoms and six hydrogen (H) atoms. It is a key boron hydride with several interesting properties, including its ability to form adducts with various Lewis bases. Despite some molecular formula similarities, it should not be confused with beryllium hydride (BeH₂) which is a different compound where beryllium forms single bonds with only two hydrogen atoms, and importantly, violates the octet rule. Unlike beryllium hydride, diborane has a more complex structure with multiple-center bonds.