Calculate the percent covalent character of a chemical bond between oxygen and beryllium.

55 percent

41 percent

59 percent

45 percent

Beryllium Oxide has a molecular formula Be-O

% covalent character in Be-O = 100 - % ionic character in Be-O

Now,

% ionic character = {1 - exp[ (-0.25) (E (Be) - E (O)) ²]}*100

where,

E (Be) and E (O) are the electronegativity values of Be and O

Based on the Paulings scale:-

E (Be) = 1.57

E (O) = 3.44

% ionic = {1 - exp[ (-0.25) (1.57-3.44) ²]}*100 = 58.28%

Therefore, % covalent = 100 - 58.28 = 41.72%

Ans: b) 41 percent