an anatomic structure with branches resembling a tree. bronchial tree the bronchi and their branching structures; see color plates. tracheobronchial tree the trachea, bronchi, and their branching structures; see color plates.. an anatomical structure with branches resembling a tree. 2. in information science, a decision tree. bronchial tree. the trachea, bronchi and successive branching generations of the respiratory passages.
If we make the balanced equation between al giving al2o3, The number of aluminum atoms is two and the number of oxygen atoms is three. As we know the atomic masses of aluminum as 26.9815386 grams per mole and oxygen as 16.9994 grams per mole. Multiplying the number of atoms of each of these elements by its respective atomic weight and then adding them, the molecular weight of Al2O3 is 101.961276 grams per mole.
No one single atom of the element has the given atomic weight because the atomic weight of the element is an average, specifically called a weighted average. Given the previous paragraph, here is a question you could be asked: Silver has an atomic mass of 107.868 amu. Does any atom of any isotope of silver have a mass of 107.868 amu? Explain why.