Chemistry 100
Concept Review
Chapter 3
Models of the Atom: What they are, how they differ, evidence for each
- Dalton
- Rutherford
- Bohr
- Quantum Mechanical (or Schroodinger, or Wave Mechanical)
- Meaning of Orbits vs. Orbitals
Relate the following to the development of the concept of the atom
- Crook's Tube
- Canal Ray Tube
- Rutherford Experiment
- Debroglie contribution
- Bohr Orbits vs. "s, p, d, and f" Orbitals
- Line Spectra vs. Continuous Spectra
- Ground States vs. Excited States
- Isotopes
What is meant by alpha particles, beta particles, and gamma rays?
Periodic Chart
- Mendeleev
- Group Numbers, Family Names
- Periods
- Metals, Non-metals, Metalloids - properties and placement
- Element Symbols, Atomic Number, Atomic Weight
Trends in the Periodic Chart for:
What are the:
- Number of Electrons in Outer Energy Level (Bohr orbit) for groups 1A-VIIIA
- Electron Configuration (s, p orbital configuration) for groups 1A-VIIIA
You should know how to do each of the following:
-
determine the number of protons, neutrons, and electrons in an atom or ion.
-
place the correct number of electrons in orbitals (s, p, d, f) for all elements through atomic number 56.
- place the correct number of electrons in Bohr orbits for all elements through atomic number 56.
For help with electron configurations (orbitals and orbits) see the tutorial "Electron Configurations Orbitals and Orbits".
In Chapter 4, what is meant by:
- Atomic Number
- Nucleon Number (Mass Number)
- Atomic Weight
- Isotopes
Be able to determine the number of protons, neutrons, and electrons for isotopes of an element written in shorthand notation.
In addition to the terms and concepts you should:
- Know how to answer questions similar to those that appeared on any Homework Assignments handed in, and
- Be able to answer the assigned questions at the end of Chapter 3. Questions 5, 8, 9, 11, 19, 20, 21, 24, 26, 29, 30, 35, 36, 37, 45, 47, 49, 50, 52, 53, 55, 57, 59, 61, 62.