Answer:
In first shell only 2 electrons are present in hydrogen only one electron is present in valence shell. To complete its duplet hydrogen can share lose or gain only one electron to form chemical bond.
Hydrogen can form only one bond.
Explanation:
The answer is wedge to your answer
A because cation is positive and anion is negative evening it out at constant.
Its hybridization would be sp because Be only has 2 covalent bonds with Cl
