Give answer of following questions. (i) Give molecular orbitals and type form byLCAO from 2s, 2p_(x), 2p_(y) and 2p_(z) (ii) Li_(2), Be_(2), C_(2), N_(2), O_(2), F_(2)for the these molecule give energy other.

Give answer of following questions. (i) Give molecular orbitals and ty

1.	Give answer of following questions. (i) Give molecular orbitals and type form byLCAO from 2s, 2p_(x), 2p_(y) and 2p_(z) (ii) Li_(2), Be_(2), C_(2), N_(2), O_(2), F_(2)for the these molecule give energy other.
Answer» SOLUTION : (ii)ENERGY order of orbitals: The increasing order of energy of MO for `Li_(2) , Be_(2) , B_(2), C_(2), ` are so under `sigma 1s LT sigma^() 1s lt sigma 2s lt sigma^() 2s lt [pi 2p_(x) = pi 2p_(y) ] lt sigma 2p_(z) lt [ pi^() 2p_(x) = pi^() 2p_(y) ]lt sigma^() 2p_(z)` The increasing order of energies of MO for `O_(2) and F_(2)` is given below. `sigma 1s lt sigma^() 1s lt sigma 2s lt sigma^() 2s lt sigma 2p_(z) lt [ pi 2p_(x) = pi 2p_(y) ] lt [ pi^() 2p_(x)pi^() 2p_(y) ] lt sigma^() 2p_(z)` REMEMBER : In `O_(2)` and `F_(2)` only the position of `sigma 2pi_(z)` is change in energy order because the energy of `sigma 2p_(z) ` is less than `pi` in `O_(2) " &" F_(2)`.