Atomic Chemistry Handout Xavier High School：原子化学讲义沙维尔高中.doc

Xavier High School IPC Review: Atoms, Chemical Bonding, Water, Solutions, Acids and Bases Name________________________________ Date__________________________ Section_______ Subatomic Particle, Atomic Number, Atomic Mass and Atomic Models What three subatomic particles make up atoms? ________________________________________________________________________________________________________________________________________________________________________________________________________________________ What are three key properties of each particle? (Use the table below for your answer.) Subatomic Particle Location in an atom Charge Size What is the atomic number of chlorine? ________________________________________________________________________________________________________________________________________________ What determines the Atomic Number of an element? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ It is a widely held misconception that the Atomic Mass of an element is the same as the Mass Number of an element. They are not the same. How is the Atomic Mass of an element calculated? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ How is the Mass Number of an element calculated? _____________________________________________________________________________________________________________________________________________________