Download Discussion Based Assessments: For the Discussion Based

Discussion Based Assessments:
For the Discussion Based Assessment:
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You should be able to confidently and comfortably talk to your instructor about the topics
and ideas you learned in the module.
Your answers should be conversational – meaning you would tell your instructor what
you know, like you were telling them about a movie you just watched.
Module 4 Study Guides
4.01 Atomic Theory
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Can you define matter?
Can you define elements?
Can you define an atom?
Can you name the 3 subatomic particles, tell where you find them in an atom, and
describe their charge?
o Particle name
Charge
Location
1.
2.
3.
What is the amu?
4.02 The History and Development of the Atomic Model
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Can you list all five statements of Dalton’s atomic theory? And tell which 2 have been
proven false?
1.
2.
3.
4.
5.
Can you describe the work of Thompson?
o What equipment did he use in his experiment?
o What charge did he find in an atom?
o What did his atom look like? What is his model commonly called?
Can you describe the work of Rutherford?
o What was his experiment?
o What was the results of his experiment?
o Which subatomic particle did he discover?
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Can you describe the work of Bohr?
o Where did he think electrons are found?
o What does Bohr’s model resemble?
o What is the new field of study he inspired?
How is an electron cloud part of the current atomic model? Electrons travel as ______in
the _________ ________that surrounds the____________.
4.03 Introduction to the Periodic Table
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Who developed the Periodic Table?
What does the atomic number represent?
Can you list 4 properties of metals?
1.
2.
3.
4.
Can you list 4 properties of nonmetals?
1.
2.
3.
4.
Can you list 4 properties of metalloids?
1.
2.
3.
4.
Can you explain what conductivity is?
Can you explain what ductility is?
What does it mean for a substance to be a semiconductor?
Why are semiconductors so important to the technology industry?
4.04 Using the Periodic Table
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Can you explain how the periodic table is organized and how elements are grouped??
o The elements are arranged in order of increasing _________ _________.
o What 3 characteristics does the periodic table list for each element?
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2.
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How can the atomic number and the atomic mass number be used to determine the
amount of each subatomic particle present in an atom of a given element?
One amu is equal to:
The mass of an electron is what compared to the mass of a proton or neutron?
LET’S REVIEW
The top number is the __________________ number.
It tells us the number of ______________________ and ______________ in the atom.
So Oxygen (O) has 8 protons and 8 electrons in its atom.
The bottom number is the _________ _______ number. Also called the amu.
By subtracting the ___________ number from the ________ _________ number , you get the
number of _______________ in the atom.
So Oxygen has (O) has 16-8 = 8 neutrons in its atom.
Lastly, elements with similar properties are found in the same row or same column?
Same _______________.
Tutorial on 4.04 Alien Periodic Table
To solve the alien periodic table, you will need to read the clues given to you for each alien
element and use what you have learned.
The workfile is under Mission Briefing on the left hand side of the Activity Page.
Let’s do a quick review of what you’ve learned about the periodic table:
On the periodic table, the elements are arranged by atomic number and are grouped by
similar properties. The ones with the smaller atomic numbers are on top and the atomic
numbers of the elements increase as you move down the table.
The metals are located on the left and middle of the periodic table, the nonmetals are on the
right side of the periodic table, and the metalloids are located between the metals and the
nonmetals.
An element’s atomic number determines its position in the table and is the same as the
number of protons.
As you move from left to right across each element in all the rows….. the number of protons
in each element increases by one…….. and so does its atomic number.
Mass number will be the number of protons plus the number of neutrons and is the number
beneath the element name.
So the mass number minus the atomic number gives us the number of neutrons.
So now look at our elements for the alien table.
Gs has the lowest mass in the universe. That will make it the first element so it will go next
to H/ as in H/Gs.
FW has 15 protons. Its atomic number is 15! So it will go next to P/Fw.
Now use your clues to fill in the rest of the Alien table.
Take your time and have fun!
4.05 Compounds
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How many elements do we currently know?
Can you define a compound?
What are the 2 elements found in common table salt? Are they safe to eat by themselves?
What is a chemical bond?
Can you define ionic bonds and identify ionic compounds?
o What is another name for an ionic bond?
o What is the chemical formula for salt?
o Ionic bonds contain atoms of a _______ bonded with atoms of a_________.
o Can you name 3 characteristics of ionic compounds?
1.
2.
3.
Can you list 3 examples of ionic compounds by their chemical formulas?
1.
2.
3.
Make sure you can identify ionic compounds because it will contain atoms of a metal bonded
with atoms of a nonmetal. Use a periodic table
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Can you define covalent bonds and identify covalent compounds?
o Covalent compounds are also called what?
o Covalent compounds can be these 3 things at room temperature.
1.
2.
3.
o Covalent bonds are made up of only what?
o Can you name 3 characteristics of ionic compounds?
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2.
3.
o Can you list 4 examples of covalent compounds by their chemical formulas?
1
2.
3.
4.
4.06 Acids, Bases, and Salts
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Can you explain what an acid is?
Can you list 4 acids?
Can you list 4 properties of acids?
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2.
3.
4.
What ion is produced by an acid in solution?
Can you list the chemical formulas for 4 acids?
Can you identify an acid by is hydrogen ions (H+)?
How do acids taste?
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Can you explain what a base is?
Can you list 3 household products that contain bases?
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2.
3.
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Can you list 4 properties of bases?
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What ion is produced by a base in solution?
Can you list the chemical formulas for 4 bases?
Can you identify bases by their hydroxide ions (OH-)?
How do bases feel when touched?
4.07 Mixtures, Solutions, and Pure Substances
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Pure substances are either ___________ or ________________.
Mixtures are either ___________ or _________________.
Can you describe a procedure to separate a mixture of salt, sand, and water?
Can you explain what a solution is?
Alloys like steel are a/an ____________.
Can you list two ways in which heterogeneous mixtures differ from elements?
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2.
How do scientists distinguish between an element and a compound?
Can you list 3 elements? Review them all!
1.
2.
3.
Can you list two compounds?
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2.
4.08 Physical Properties
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Can you define physical properties?
Can you identify 5 extensive physical properties?
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Can you identify 6 intensive physical properties?
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3.
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Can you define ductility?
Can you define phase/state?
Can you define malleability?
Can you define volume?
Can you define mass?
Can you define density?
Can you define boiling point?
Can you define melting point?
4.09 Mass and Weight
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What does weight measure?
What device would you use to measure weight?
Can you define mass? What does it measure?
What device would you use to measure mass?
Which one, mass or weight, is affected by gravity?
What would your weight be on a planet where the gravity is 20 times our Earth’s?
4.10 Density
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Can you define density?
Is density a physical property?
Can you calculate density?
What units of measurement are used to describe density?
The formula for density is ______________.
Remember that density is a heart. Look at the m over the v. I know density is mass over
volume because I don’t forget my heart!
M
V
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Does density change?
Honors Students Only
4.04 Advanced Arrangement of Electrons
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Can you say what the different areas of electron clouds are called?
What is the maximum number of electrons that can be contained in the first energy level
of any atom?
How many electrons can be in the second energy level?
As you move further away from the nucleus, the electrons have _______ energy.
Can you tell what determines the general reactivity of an element? An atom with a full
outer shell would be more or less reactive?
All elements in the same group on the periodic table have the same?
4.06 Advanced pH Scale
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Can you explain how the pH scale is used to measure the acidity of a substance?
o If the pH of a solution is less than 7, it is___________. The lower the pH value is,
the more __________ the solution because of the greater amount of
___________ions.
o If the pH of a solution is 7, it is a ____________solution and this means that the
concentrations of H+ ions and OH- ions are _________.
o If the pH of a solution is greater than 7, it is___________. The higher the pH
value, the more ______________and the greater the amount of ___________ions.