2. Oxygen has an atomic number of 8 and most commonly, a mass number of 16. Thus, what is the atomic mass of an oxygen atom?
(A) approximately 8 grams
(B) approximately 8 daltons
(C) approximately 16 grams
(D) approximately 16 daltons
詳解 (共 1 筆)
未解鎖
題目解析 這道題目考察的是對氧原子的原...
阿摩線上測驗
登入
