STUDY GUIDE FOR TEST
Monday March 14
1. Reading and Interpreting the Periodic Table
a. Classes of elements
b. Groups
c. Periods
d. Atomic number
e. Mass number
f. Its invention
g. How to calculate neutrons
2. Electron Energy Levels
3. Electron Orbital Lab
4. Lab Safety
5. Emission Spectra Lab 1 and 2
6. Alien Periodic Table Activity
7. Periodic Table Competition
The above topics will appear on the test, which will have 20 questions worth
three points each. You will see fill in the blank, true/false, short answer and
essays. You will not be given any equations.
You will be marked off a ½ point when you do not include units for a
numerical answer or use the wrong units.
Use the following sources to study from:
*lecture notes located on my Wikispace page
*your text. If a topic appears in the text that we did not discuss, then it
will not be included on the test.
*labs
*homework
*additional notes you may have taken in class
***** bring your calculator to the test!!!
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This is a sample test only. You will see questions similar to these on your
test, but you will not see the exact same questions. Complete this test at
home and score it yourself after you have completed it. I will not collect
it and it will not be graded by me. Bring it to class the day before the
test. We may go over it together if there are questions.
Please show all your work.
1. The creator of the periodic table was ____________________.
a. Albert Einstein
b. Henri Bequerel
c. Dmitri Mendeleev
d. Marie Curie
2. Describe how the inventor of the periodic table arranged the
elements. Answer in 3-5 sentences.
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3. Periodic means random. True or false?
The information below is taken from the periodic table for the element
Mercury (Hg). Use this information to answer #4.
Hg
Mercury
80
200.59
4. Mercury has ____________________________protons,
________________electrons and ________________neutrons.
CONTINUED ON THE NEXT PAGE
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5. The atomic mass of an element is measured in _________________.
6. Why are the properties of an element within a group similar? Answer
in one or more sentences.
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_________________________________________________________
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Use the following information to answer #7, 8 and 9.
Ar
Argon
18
39.948
7. How many electrons does argon have in the first energy level?______
How many electrons does argon have in the second energy level?_______
How many electrons does argon have in the third energy level?________
8. What period is Argon in on the Periodic Table?________________
9. Name the group that argon belongs to:_______________________
10. What is the Octet Rule? Answer in one sentence.
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_________________________________________________________
_________________________________________________________
11. Describe a situation in which your teacher might ask you to use the
red button (gas shut off button). Answer in one sentence.
_______________________________________________________
_______________________________________________________
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CONTINUED ON THE NEXT PAGE
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12. Imagine you are a chemist. You are presented with a sample of an
unknown element. Describe how you would determine its composition
with a spectroscope, a heat source and the following table. Answer in
2-5 sentences.
Element
Sulfur
Hydrogen
Lithium
Mercury
Tungsten
Sodium
Emission lines
6000 angstroms
6530 and 4830 angstroms
6708 angstroms
4500 and 5650 angstroms
6250 angstroms
5890 angstroms
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13. An excited electron is one that has
a. returned to its original energy level
b. emitted a photon
c. absorbed energy and left its original energy level for a higher
one
d. changed colors
14. What does a spectroscope measure?
a. Wavelengths of light
b. The size of electrons
c. The amount of an element in a sample
d. Types of electrons
CONTINUED ON THE NEXT PAGE
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Read the following clues and use them to fill in the blank boxes on the
attached periodic table. You will have one empty space left.
15. Silicon (Si) has 14 electrons.
16. Xenon (Xe) is a noble gas with electrons in its fifth energy level.
17. Rhodium (Rh) is a transition metal.
18. Neon (Ne) is a noble gas with 10 protons.
19. Cesium (Cs) is a highly reactive metal.
20. Samarium (Sm) is in the lanthanide series.
ANSWERS
1. C
2. Dmitri Mendeleev recognized similarities between different elements
and tried several different methods of arranging them. The one that
worked best was arranging them in order of increasing atomic mass.
When he did that, he noticed a periodic or repeating pattern, causing
him to group particular elements together in columns.
3. F
4. 80, 80 and 121 neutrons
5. Amu or atomic mass units
6. The elements in each column or family have similar properties because
they all have the same number of outer electrons.
7. 2,10,6
8. 3
9. Noble gases
10. Atoms are most stable when they have eight electrons in their outer
energy level.
11. A Bunsen burner is flaring up or burning out of control.
12. I would burn the sample and examine the emission lines with the
spectroscope. Then I would compare what I saw to the table to
determine the composition of the sample.
13. C
14. A
15. Silicon goes between aluminum and phosphorus.
16. Xenon is number 54.
17. Rhodium is number 45.
18. Neon is number 10.
19. Cesium is number 55.
20. Samarium is number 62.
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