Classify the following substituents according to whether they are electron donors or electron acceptors relative to hydrogen by the resonance and the inductive mechanisms. 1. 2. 3. -SeCH3 methylselenyl CH3 CH3 N-methylacetamido Inductive effect [acceptor Resonance effect donor :0: —CH,CH,CH,COCH3 Inductive effect [acceptor Resonance effect donor Inductive effect ✓ Resonance effect

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For each of the statements below, indicate whether it is true or false and explain your reasoning. (1-3 sentences) ( 1/ It takes more energy to ionize an electron from the 2s orbital than an electron from the 2p orbital in the Li2+ ion. 2/ The electron affinity of the Ne atom is larger than the electron affinity of the F atom. 3/ K* has a larger radius than Ar. 4/ For a diatomic molecule, in which the internuclear axis is the z-axis, the 3dz2 orbital cannot mix with the 2px orbital. 5/ The internuclear distance of O2 increases as it takes an additional electron to become O2.