1.

Give electron configuration,magnetic property bond order and energy diagram for oxygen (O_(2))molecule.

Answer»

Solution :`O_(2) (Z = 8 ) 1 s^(2) 2s^(2) 2p^(4)` ,So total electron in `O_(2)`= 16 ,& 12 valence electrons are participate in bond.
electron configuration in MO for `O_(2)` .
KK `(sigma 2s)^(2) (sigma^(**)2s)^(2) (sigma 2p_(x))^(2) = (pi 2p_(y))^(2) (pi^(**) 2p_(x))^(1) (pi^(**) 2p_(y))^(1)`
Bond order `= (1)/(2)(N_(b) - N_(a))`
= `(1)/(2) (10 - 6)= 2("DOUBLE bond" O_(2))`
in it unpair `bar(E) " in " pi_(2p_(x))^(**) and pi_(2p_(y))^(**) `, So paramagnetic
Energy diagram for `O_(2)` molecule :


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