STUDY GUIDE
Chemistry Unit!!!!
1.
ATOMS
● structure, charge, location
2. BOHR ATOMS:
● Given an element, you should be able to generate a Bohr atom, know the names of the levels (k,l,m
etc.), be able to put electrons in the appropriate orbits
● Conversely, if given a Bohr atom, you should be able to identify which element to which it belongs
● Valence electrons
3. PERIODIC TABLE
● Know how to get information from the blocks of the periodic table
Be able to use MAN and APE to determine that information
Know the difference between atomic mass and mass number
● Periods​: show ​trends
● Groups ​(families​) : know that members of the same family have ​similar properties​ (Noble and
Halogen are specific families)
● Metals, nonmetals, metalloids and their properties
● Valence shells (period #), Valence electrons (group/family #)
4. METALS, METALLOIDS AND NONMETALS
● Know where they are on the periodic table of elements
● Know that metals constitute most of the elements
● Know that all metals are solid (except for Mercury), that almost all nonmetals are gases and that all
metalloids are solids
● Know the properties of the 3 classifications
5. ELEMENTS, COMPOUNDS, MIXTURES, Oh my
● Know the characteristics of each
● Pure or not
● More than one type of atom or not
● Chemically bonded or not
● Be able to pick out elements, compounds and mixtures in pictures
● Be able to differentiate between homogeneous (solutions) and heterogeneous mixtures
● Know that solutes have two parts and know what is called the “universal” solvent
● Know what is an alloy
6. KNOW IF A PROPERTY IS A PHYSICAL PROPERTY OF CHEMICAL PROPERTY
● Be able to recognize a property as physical of chemical
● Know if the property is intensive or extensive
7. Be able to discuss electrolysis of the COMPOUND water and why it couldn’t be physically separated
8. TYPES OF MIXTURE SEPARATION (know whether it is used to separate homo or hetero mixtures) AND THE
TOOLS USED FOR EACH
● Chromatography
● Filtration
● Evaporation
● Magnetism
● Distillation
● Funnel separation (on task cards)
● Decanting
9. Recognize ball and stick models as representations of molecules
10. Be able to count the number of atoms in a molecule
11. Know the parts of a chemical equation (RAP)
● Reactants
● Products
12. Recognize an equation as either balanced or unbalanced
13. Be able to balance equations (simple)
14. Know what the Law of Conservation of Mass states and know why balanced equations support the law
● Open vs Closed system
15. Know the difference between a physical and a chemical changes
● Change in properties, chemical formula, and rearrangement of atoms….
● Know examples of each
16. Endothermic vs Exothermic Reaction
● Simply…does it get colder or hotter (that’s all for now!)
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