Question

Winch of the following molecules does not exist according to molecular orbital theory?

• A. $L{i}_2$
• B. $B{e}_2$
• C. $B_2$
• D. $C_2$

Answer 1

Answer: (B)

$B{e}_2$ molecules does not exist according to molecular orbital theory. Because bond order of $B{e}_2$ is zero. Hence, it does not exist.