钾：正1价。氯：负1价、正1价、正5价、正7价。钠：正1价。氧：负2价、负1价。银：正1价。硫：负2价、正4价、正6价。钙：正2价。碳：正2价、正4价。镁：正2价。硅：正4价。钡：正2价。氮：负......