`H_(2)`,`Li_(2)`,`B_(2)` ,each has a bond order equal to `1` .The order of their stability is

H_(2), Li_(2), B_(2) each has bond order equal to 1 the order of their stability is

MO' s are formed by the overlap of A'O s Two AO's combine to form two MO's called bonding molecular orbital (BMO) and antibonding molecular orbital (ABMO) Differnet AO' s of one atom combine with these AO 's of the second atom which have comparable energies and proper orienation Further, If the overlapping is head on, the MO is called 'pi' The MO's are filled with electrons following the same rules as followed for filling of atomic orbitals However the order of filling is not the same for all molecules or their ions Bond order is one of the most important parameter to compare a number of their characteristics H_(2),Li_(2)B_(2) each has bond order equal to 1 The order of their stability is .

Assertion H_(2),Li_(2),B_(2) each has a bond order of 1 and hence are equally stable Reasoning Stability of molecule//ion depends only on bond order .

Bond order of Be_2 is

In Be_(2) the bond order is