Science / Chemistry / Pauli Principle: No two electrons in an atom can have the same set of 4 quantum numbers. Because the n, ell, and mell quantum numbers address a particular orbital, and because the ms quantum number has only two possible values, the Pauli principle says that a maximum of two electrons can occupy an atomic orbital- and these electrons must have opposite spins.
Principle Noun Synonyms: truth, given, precept, tenet, fundamental, grounds, law, rule, dictum, canon, doctrine, teaching, dogma, proposition, (basic) assumption, postulate, axiom, maxim, truism, guide, standard, criterion, model
Science / Biology / Principle Of Segregation: Mendels first law; holds that each pair of factors of heredity separate during gamete formation so that each gamete receives one member of a pair. MORE
Science / Biology / Principle Of Independent Assortment: Mendels second law; holds that during gamete formation, alleles in one gene pair segregate into gametes independently of the alleles of other gene pairs. As a result, if enough gametes are produced, t MORE