The kind of bond they will form is an ionic bond where one beryllium atom will donate electrons to two chlorine atoms (option A).
Ionic bond is a type of chemical bond where two atoms or molecules are connected to each other by electrostatic attraction.
Ionic bonds are formed by atoms with opposite charges i.e. negative (-) and positive (+) charge. The metal is usually positively charged while the nonmetal is usually negatively charged.
According to this question, the molecule beryllium chloride has one beryllium atom, a metal, and two chlorine atoms, nonmetals. This means that an ionic bond will be formed by beryllium atom and chlorine atom.
Learn more about ionic bonds at: https://brainly.com/question/11527546
#SPJ1