Looking at the Lewis dot structure as shown, A is most likely hydrogen.
An ionic bond is formed between metals and nonmetals. The metal transfers electrons to nonmetals. The number of atoms involved in the bond depends on the respective valencies of the elements involved. Covalent bonds are formed by sharing electrons between atoms.
Given the general Lewis dot structure for the compound is A :B:A. We can see from the Lewis structure that A will most likely be hydrogen.
Learn more: https://brainly.com/question/14281129?
