Question

Nitrogen molecules can absorb photons to generate excited-state molecules. Consider the most stable excited state of N₂. Is the N-N bond in this excited-state N₂ molecule weaker or stronger than the N-N bond in ground-state nitrogen?

Answer 1

Bond Oerler= 1 No-Na) - where My = No of electrons in ' bonding madecubex_02bitals Na= No of electrong in antibonding molecular Orbitals M. O Diagrum for Ne is : 263 1 · 284 A.O of 2 o A.O of N _ MO of Ne Bond order for ₂ (Ground state) = √ (6-0)= 3 As Ne molecules absorb photons to generate excited state molecules , the electrons are promoted from - bonding molecular orbital to antibonding molecular orbital No. of Elections in bonding M.O decreases and No of electrons ! in antibonding M.o increases . According to @ bond order . - decreases from 3.% Bond becomes weaker than ground state Ne