Answer: In this case, there are a total of 4 atoms (1 boron atom and 3 hydrogen atoms) bonded together in the molecule.
Explanation: Borane is a chemical compound that contains one boron atom bonded to three hydrogen atoms. The chemical formula for borane is BH3, indicating that it contains one boron atom bonded to three hydrogen atoms. Borane is a molecule, which means it is composed of two or more atoms bonded together chemically. In this case, there are a total of 4 atoms (1 boron atom and 3 hydrogen atoms) bonded together in the molecule.