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When an electron drops from a higher energy level to a low energy level, then:
(1) Atomic number decreases
(2) Energy is absorbed
(3) Atomic number increases
(4) Energy is emitted
Ans: Energy is emitted
Why can classical (Werner) octaedral complexes with no pi-bonding have between 12-22 valence electrons, whereas octahedral complexes with pi-bonding must have 18 electrons?
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