Final answer:
The compound formed by boron and chlorine atoms is called Boron trichloride (BCl₃), and it features a trigonal planar molecular structure with three chlorine atoms bonded to boron.
Step-by-step explanation:
The product of boron and chlorine atoms is known as Boron trichloride, which is chemically represented by the formula BCl₃. In the nomenclature of this compound, the name of the nonmetal (chlorine) is modified to include the suffix '-ide', hence 'chloride'. Since there are three chlorine atoms bonded to a single boron atom, the prefix 'tri-' is used to denote the quantity, leading to the name boron trichloride.
Boron trichloride (BCl₃) has a trigonal planar molecular structure, with 120° angles between the B-Cl bonds. The central boron atom has three regions of high electron density and forms three bonds with chlorine atoms, without any lone pairs of electrons on the boron, resulting in the trigonal planar electron-pair geometry.