Assertion : Fluorine molecule has bond order | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The $MO$ electronic configuration of the $F_2$ molecule ($18$ electrons) is: $\sigma 1s^2, \sigma^* 1s^2, \sigma 2s^2, \sigma^* 2s^2, \sigma 2p_z^

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) The $MO$ electronic configuration of the $F_2$ molecule ($18$ electrons) is: $\sigma 1s^2, \sigma^* 1s^2, \sigma 2s^2, \sigma^* 2s^2, \sigma 2p_z^2, \pi 2p_x^2 = \pi 2p_y^2, \pi^* 2p_x^2 = \pi^* 2p_y^2$. Number of bonding electrons $(N_b)$ $= 10$. Number of antibonding electrons $(N_a)$ $= 8$. Bond order $= \frac{N_b - N_a}{2} = \frac{10 - 8}{2} = 1$. Since $N_b - N_a = 2$,the number of electrons in antibonding orbitals is indeed two less than in bonding orbitals. Thus,both Assertion and Reason are correct,and the Reason is the correct explanation for the Assertion.

Assertion : Fluorine molecule has bond order one.
Reason : The number of electrons in the antibonding molecular orbitals is two less than that in bonding molecular orbitals.

Similar Questions

During the change of $O_2$ to $O_2^-$ ion,the electron adds to which one of the following orbitals?

Provide the electron configuration,magnetic property,bond order,and molecular orbital energy diagram for the fluorine $(F_2)$ molecule.

If $x-axis$ is the molecular axis and $p_z$ orbitals participate in bonding,then which one of the following will be the nodal plane present within the $\pi-$ bond of the $O_2$ molecule?

In which of the following ionization processes,the bond order has increased and the magnetic behaviour has changed?

Which one of the following molecules is paramagnetic?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : Fluorine molecule has bond order one. Reason : The number of electrons in the antibonding molecular orbitals is two less than that in bonding molecular orbitals.