Which of the following sets of quantum numbers describe valid orbitals? Check all that apply.
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Ответ:
Given the chemical formula Al2O3 and every oxygen ion (combined with an aluminum ion) has a charge of -2, the total negative charge is -2x3 = -6.
As Al2O3 is neutral, the total positive charge must be 6. The charge of each aluminum ion is 6/2 = 3.
An uncharged aluminum atom must lose 3 electrons so that it will bond with oxygen.