1. Week 8 Notes and Warm-Ups
September 11-15, 2017
Mr. Godoy
Chemistry/IS9
Week 8 Notes and Warm-Ups
Chemistry and I.S 9

2. CHEMISTRY
Monday September 11th, 2017
Learning Target: Predict properties of elements and compounds using trends of the periodic table and explain the details of atomic structure (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, Pencil, Periodic Table, Period Trends Worksheet,
Pick up new warm up sheet on Mr. G’s Lab Bench, stack last week’s warm up in a pile.
Agenda:
Warm-up:
Define: proton pulling power. How does this effect the trends on the periodic table?
Draw the abbreviated orbital diagram for gold (Au).
Review periodic trends
Introduce History of the Atom Project
Alien Periodic Table Activity
Assignment:
Alien PT
History of Atom Project due NEXT Wed/Thurs

3. Most reactive metal = Fr (the most metallic)
Increased Electronegativity
Increased Ionization Energy (harder to remove an electron)
Decreasing Atomic Radius
Most Reactive Nonmetal
= F
More metallic
Increased Electron Shielding
Decreased Ionization Energy (easier to remove an electron)
Increasing number of energy levels
Decreased Electronegativity
Increasing Atomic Radius
Most reactive metal = Fr
(the most metallic)
Nonreactive
BACK

4. Investigative Science
Monday September 11th, 2017
Learning Target: Students will be able to list the three pillars of sustainability.
Take Out: Pencil, Notebook,
Pick up new warm up sheet on Mr. G’s Lab Bench, stack last week’s warm up in a pile
Agenda:
Warm-up: What happened to Easter Island’s environment? Can this happen to the entire Earth? If it cannot, why not? If it can, how can we stop this?
Video Response.
Easter Island Article activity
Homework:
Venn Diagram and Article Questions

5. CHEMISTRY
Tuesday September 12th, 2017
Learning Target: Predict properties of elements and compounds using trends of the periodic table and explain the details of atomic structure (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, Pencil, Periodic Table, Alien Periodic Table
Agenda:
Warm-up/Reflection:
Who is your assigned scientist? What is one thing you’ve learned about him/her?
Review Alien Periodic Table
Research Day
Assignment:
Work Cited Page (3 Sources)
History of Atom Project due NEXT Wed/Thurs

6. Investigative Science
Tuesday September 12th, 2017
Learning Target: Students will be able to determine their ecological footprint and what significance it has on the enviornment
Take Out: Pencil, Notebook, Easter Island Article Activity (2 Sheets)
Agenda:
Warm-up: How much water do you think there is on Earth? What percentage of this water do you think you personally use?
Ecological Footprint Webquest
Homework:
Venn Diagram and Article Questions

7. What is an ecological footprint?
Sustainability and Human Impact

8. Your relationship with the environment:

9. How do we measure these footprints?

10. How do we share earth's resources?
Some countries possess more Biocapacity than others. Canada is an example of this, possessing almost twice as much biocapacity as it uses.
An Ecological reserve exists when the biocapacity of a region exceeds its population's Footprint.
We call these countries "Ecological Creditors" If biocapacity was money, they would have extra to lend.

11. How do we share earth's resources?
Many developed countries do not possess enough biocapacity to support their populations.
An ecological deficit occurs when the footprint of a population exceeds the biocapacity of the area available to that population. ​
The USA is an example of this, we use about twice as many resources as our biocapacity can replenish, leaving us in an ecological deficit.
For this reason, we are considered an "Ecological Debtor" we must buy resources from Ecological Creditors like Canada.

12. Is there enough biocapacity to support the world's population? No!
The world-average ecological footprint in 2016 was 2.7 global hectares per person ​
with a world-average biocapacity of 1.8 global hectares per person this leads to an ecological deficit of 0.9 global hectares per person.

13. Is this a sustainable path?
What does that mean?
This means we would need roughly 1.5 planets to meet the needs of the human race.
If we continue using resources at this rate, we will not be able to survive.
Is this a sustainable path?

14. World Overshoot Day – August 2nd 2017
Think of earth's biocapacity as a budget.  
Unfortunately, we don't stick to our budget well. Every year we spend too much of our resources.
Scientists calculate what day in the year we go over our budget and that day comes earlier and earlier every year. We call it Earth's Overshoot Day.
1971 was the first year we went over our budget. Earth overshoot day was December 28th, just 3 days early. In it was August 2nd.

15. What is the pattern for countries that have a deficit or a reserve?
In general, high income countries have a greater Ecological foot print.

17. Some high income countries with a high footprint are still ecological creditors because of their size and ecology.

18. Other high income countries are still debtors because of the large footprint and lack of resources.

19. What is your ecological footprint?
Answer the following questions as Mr. Godoy models how to use the footprint calculator.
Estimate what you think YOUR ecological footprint is. 
Estimate what you think Mr. Godoy’s ecological footprint is.
List 3 factors that can help decrease an individual's ecological footprint.
List 3 factors that can increase an individual's ecological footprint.
Write down Mr. Godoy’s ecological footprint.

20. CHEMISTRY Warm-up/Reflection: Isotopes and Atomic Mass Notes
Wed/Thurs September 13/14th, 2017
Learning Target: Predict properties of elements and compounds using trends of the periodic table and explain the details of atomic structure (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, Pencil, Periodic Table, Works Cited Page (3 Sources)
Agenda:
Warm-up/Reflection:
Identify the following atoms based on their subatomic particles:
1 Proton, 1 Electron, 0 Neutrons
1 Proton, 1 Electron, 1 Neutrons
1 Proton, 1 Electron, 2 Neutrons
Isotopes and Atomic Mass Notes
Beanium Lab Activity
Assignment:
Beanium Lab Worksheets
Quiz Monday 9/18
History of Atom Project due NEXT Wed/Thurs

21. Isotopes are Iso-Dope

22. What are Isotopes?
Two atoms are isotopes if they have the same number of protons, but they have different numbers of neutrons.
This means that:
Isotopes are atoms of the same element.
Isotopes have different atomic masses.
Isotopes have different number of neutrons in their nuclei.

23. Isotopes
Atoms that have the same number of protons, but have different numbers of neutrons
Examples
Notice that each of these atoms have one proton; therefore they are all types of hydrogen. They just have a different mass number (# of neutrons). - - + + + -
Hydrogen (Protium)
Hydrogen (Deuterium)
Hydrogen (Tritium)

24. Comparing the isotopes of Hydrogen
Similarities:
Same number of protons.
Same number of electrons.
Same appearance and chemical properties.
Differences:
Different number of neutrons.
Different atomic masses.

25. Isotopic Abundance (% Abundance)
A sample of hydrogen is a mixture of the three isotopes of hydrogen.
Each isotope is a fraction of the mixture, and has its own isotopic abundance (expressed as a percentage of the whole).
The isotopic abundance is fixed so that every sample of the element (in the universe) has the same proportions of the isotopes.

26. 99.9% H-1 .015% H-2 0% H-3 Isotopic Abundance
A sample of hydrogen is a mixture of three isotopes, present as:
99.9% H-1
.015% H-2
0% H-3

27. Average Atomic Mass and Isotope Abundance
The Average Atomic Mass seen on the Periodic Table is a weighted average of all of the isotope masses.
The weighted average takes into account the isotope masses and their percent abundances.
In a weighted average calculation, the isotope with the greatest % abundance has the biggest influence on the average atomic mass.

28. Average Atomic Mass
The average atomic mass is a weighted average of all the isotope masses for a particular element.
When you calculate average atomic mass, you need three pieces of information:
The number of isotopes
The masses of each isotope
The % abundance of each isotope

29. Atomic Mass
The weighted average of the masses of all the naturally occurring isotopes of an element
The average considers the percent abundance of each isotope in nature
Found on the periodic table of elements
Example
What would be the atomic mass (≈) of Hydrogen if these three isotopes
were found in the following percentages (99.9, 0.015, 0) respectively? - + + + - -
Hydrogen (Protium)
Mass # = 1 amu
Hydrogen (Deuterium)
Mass # = 2 amu
Hydrogen (Tritium)
Mass # = 3 amu
If you simply average the three, (1 amu + 2 amu + 3 amu/3) 2 amu would be the atomic mass, but since 99.9% of the Hydrogen is Protium, the atomic mass is around 1 amu (.999 x 1 amu)

30. Calculating Average Atomic Mass
Use the equation:
AAM (u) = (% ab1 x mass1)+ (% ab2 x mass2 )+ … (% abn x massn )
Where:
AAM = Average Atomic Mass
%ab1 = Percent abundance of isotope 1
mass1 = Mass of isotope 1

31. Average Atomic Mass
The average atomic mass for carbon on the Periodic table is 12.01u.
This means:
Carbon has more than one isotope;
One of carbon’s isotopes has a mass of 12, another is greater than 12;
The most abundant isotope is Carbon-12.

32. Sample Problem AAM (u) = 55.4u + 52.5u
Silver has two naturally occurring isotopes, Ag-107 (m=106.9u) and Ag-109 (m=108.9u) with isotopic abundances of 51.8% and 48.2% respectively. Calculate the average atomic mass of silver.
AAM (u) = (% ab1 x mass1)+ (% ab2 x mass2)
AAM (u) = ((0.518)x 106.9u) + ((0.482) x 108.9u)
AAM (u) = 55.4u u
AAM (u) = 107.9u

33. Ion
Charged particle that typically results from a loss or gain of electrons
Two types:
Anion = negatively charged particle
Cation = positively charged particle - - - + -
= 8 + + + + - - 9 6 + + - -
Now that three electrons were lost, the number of electrons (6) and protons (8) is still unbalanced; therefore, it is still an ion, but now it is specifically referred to as a cation.
Now that this atom of oxygen just gained an electron, it is no longer neutral or an atom. It is now considered an ion (anion). This ion has more electrons (9) than protons (8).
Currently, this atom of oxygen is neutral because it has an equal number of electrons (8) and protons (8). - -
Symbol = O1-
Symbol = O2+
Symbol = O

34. Investigative Science
Wed/Thurs September 13/14th, 2017
Learning Target: Students will be able to determine their ecological footprint and what significance it has on the enviornment
Take Out: Pencil, Notebook, Webquest Worksheets
Agenda:
Warm-up: How would you explain the status of the world’s natural resources to a friend? Include “biocapacity” and “footprint” in your explanation.
Finish Ecology Webquest
Review Test
Homework:
Ecology Websquest

35. CHEMISTRY Warm-up/Reflection: Review Beanium Lab Review for quiz
Friday September 15th, 2017
Learning Target: Predict properties of elements and compounds using trends of the periodic table and explain the details of atomic structure (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, Pencil, Periodic Table, Beanium Activity Worksheets
Agenda:
Warm-up/Reflection:
How many protons, neutrons, and electrons do the following atoms have:
146C
4822Ti
2311Na1+
Review Beanium Lab
Review for quiz
Assignment:
Study for Quiz Monday 9/18
History of Atom Project due NEXT Wed/Thurs

36. Investigative Science
Friday September 15th, 2017
Learning Target: Students will be able to determine their ecological footprint and what significance it has on the enviornment
Take Out: Pencil, Notebook, Webquest Worksheets
Agenda:
Warm-up: What was your personal ecological footprint? What did you learn from the ecology unit?
Review for sustainability quiz
Homework:
Sustainabiltiy Quiz Mondy