Atoms, Ions, and Isotopes Test Review
This completed review sheet can be used on the test November 2, 2016
Definitions (or People)
Atom
Ion
Isotope
Proton
Neutron
Electron
Valence electron
Electron shell, orbital, electron cloud, energy level
Atomic Number
Mass Number
Average Atomic Mass
John Dalton
John Dalton’s postulates
J.J. Thompson
Rutherford
James Chadwick
Bohr
Cloud Model
Bohr Model
Electron Dot Diagram
Gold Foil Experiment
Cathode Ray Tube
Neutral Charge (as in the state of an atom)
Percent Abundance
Chemical bond
Cation
Anion
Atomic theory
Nucleus
Questions/ Practice Problems
1. Which of John Dalton’s postulates are still considered to be true today?
2. Which of John Dalton’s postulates are NOT considered to be true today?
3. What was discovered in the cathode ray tube experiment?
4. What did Ernest Rutherford’s gold foil experiment discover? (actually 4 discoveries)
5. What does APE MAN and Pretty Nice Mass stand for?
6. Describe the difference between atomic mass and mass number.
7. Be able to use symbolic isotopic notation (nuclear notation) or hyphenated notation. For example, write carbon -14 in nuclear notation.
8. Be able to determine the number of protons, neutrons, and electrons, in an atom. Example. If an element has 35 protons and a mass number of 80, how many electrons and neutrons does it have? Which element would this be?
9. Compare the masses and charges of protons, neutrons, and electrons.
10. What is the heaviest part of an atom?
11. What part of an atom takes up the most space or volume?
12. How many protons, electrons, and neutrons are in the following Boron -6, Boron -5, and 13Carbon?
13. Draw a Bohr model of a neutrally charged carbon atom.
14. Draw an electron dot diagram of oxygen.
15.