(i)If a homonuclear diatomic molecule is oriented along z-axis, determine the molecular orbital formed by the linear combination of atomic orbitals of the two atoms. Also draw their resulting structure. Determine the orbital having two radial nodes and two angular nodes and also give reason to support your answer. (ii)The signs of the unsquared wave functions are usually shown in plots of the squared functions. Why do you think this practice exists? Give values of angular nodes and plane of 3p, 4d, 2p, 4f, 4s.

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