UNIT 3 - ATOMIC THEORY & ATOMIC STRUCTURE
I. History
of Atomic Theory
A. Ancient
Greeks
1. Aristotle
2. Democritus
B. Dalton
C. Thomson
& Millikan
D. Rutherford
& Bohr
E. Chadwick
F. Quantum
Mechanical Model
II. Atomic
Structure
A. Subatomic
Particles
1. Location
2. Charge
3. Mass
B. Atomic
Mass Unit
C. Atomic
Number
D. Mass
Number
E. Isotopes
& Average Atomic Mass
III. Weighing
and Counting Atoms
A. The
Mole
B. Avogadro's
Number
C. Molar Mass
North Carolina Essential Standard and Clarifying
Objectives:
Chm. 1.1 Analyze the structure of atoms and ions.
Chm. 1.1.1 Analyze the structure
of atoms, isotopes, and ions.
•
Characterize protons, neutrons, electrons by location, relative charge,
relative mass.
•
Use symbols: A=mass number,
Z=atomic number
•
Use notation for writing isotope symbols:
23592U or U-235
•
Identify isotope using mass number and atomic number and relate to number
of protons, neutrons, and electrons.
•
Differentiate
average atomic mass of an element from the actual isotopic mass and mass number
of specific isotopes.