9 week exam review
DESCRIPTION
9 week exam Review. Question 1 - 10. The modern periodic table lists elements in order of increasing atomic________. Answer 1 – 10. Number. Question 1 - 20. Describe Mendeleev’s periodic table. Answer 1 – 20. He arranged elements in order of increasing atomic mass. Question 1 - 30. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/1.jpg)
9 week exam Review
![Page 2: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/2.jpg)
History Periodic Trends
Metals, nonmetals, metalloids
Electrons Bonding
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
![Page 3: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/3.jpg)
Question 1 - 10
• The modern periodic table lists elements in order of increasing atomic________.
![Page 4: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/4.jpg)
Answer 1 – 10
Number
![Page 5: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/5.jpg)
Question 1 - 20
• Describe Mendeleev’s periodic table.
![Page 6: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/6.jpg)
Answer 1 – 20
He arranged elements in order of increasing atomic mass.
![Page 7: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/7.jpg)
Question 1 - 30
Why is Mendeleev the “Father of the Modern Periodic Table” and not Meyer or both?
![Page 8: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/8.jpg)
Answer 1 – 30
• Mendeleev correctly predicted physical properties of three unknown elements.
![Page 9: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/9.jpg)
Question 1 - 40
How did Moseley update the Periodic Table?
![Page 10: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/10.jpg)
Answer 1 – 40
After calculating the atomic number of elements, he rearranged the PT by increasing atomic number.
![Page 11: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/11.jpg)
Question 1 - 50
• Assess the contributions of Mendeleev and Moseley to our modern understanding of the relationship between atomic structure and atomic behavior.
![Page 12: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/12.jpg)
Answer 1 – 50
• Mendeleev’s PT was able to show that groups/families of elements have similar properties depending on the size of the nucleus. (able to predict properties of atomic behavior based on guessed atomic mass)
• Moseley expanded upon Mendeleev’s ideas with atomic number (number of protons) defining an atom and its properties.
![Page 13: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/13.jpg)
Question 2 - 10
What is the trend for metallic reactivity across a period? (for example from sodium, to magnesium, then aluminum?)
![Page 14: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/14.jpg)
Answer 2 – 10
• Chemical reactivity of metals generally decreases across a period.
![Page 15: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/15.jpg)
Question 2 - 20
• What is ionization energy?
![Page 16: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/16.jpg)
Answer 2 – 20
• Amount of energy needed to remove an electron to form a cation.
![Page 17: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/17.jpg)
Question 2 - 30
• Describe the trend across a period and down a group for electronegativity.
![Page 18: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/18.jpg)
Answer 2 – 30
• The trend across a period for electronegativity increases. It decreases as it goes down a group.
![Page 19: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/19.jpg)
Question 2 - 40
• What is the trend for atomic radius on the periodic table?
![Page 20: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/20.jpg)
Answer 2 – 40
• It decreases across a period and increases down a group.
![Page 21: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/21.jpg)
Question 2 - 50
What is the most electronegative element, and what is its value?
![Page 22: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/22.jpg)
Answer 2 – 50
Fluorine, 4.0
![Page 23: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/23.jpg)
Question 3 - 10
• Where are the metals located on the periodic table?
![Page 24: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/24.jpg)
Answer 3 – 10
• To the left and cover most of the periodic table.
![Page 25: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/25.jpg)
Question 3 - 20
• What type of element is Tungsten?
![Page 26: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/26.jpg)
Answer 3 – 20
• Transition metal
![Page 27: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/27.jpg)
Question 3 - 30
What is a metalloid?
![Page 28: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/28.jpg)
Answer 3 – 30
Solids that are semi-conductors that have properties in between metals and non-metals.
Located on the staircase.
![Page 29: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/29.jpg)
Question 3 - 40
• Give 3 characteristics of a nonmetal
![Page 30: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/30.jpg)
Answer 3 – 40
Gases at room temp/brittle if solidLow melting/boiling pointsNon-conductors
![Page 31: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/31.jpg)
Question 3 - 50
• Describe metals’ role in bonding. (how do they bond?)
![Page 32: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/32.jpg)
Answer 3 – 50
• They form cations (positive ions) by losing electrons (transfer to nonmetals). Therefore, they participate in ionic bonding.
![Page 33: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/33.jpg)
Question 4 - 10
The main energy levels of an atom are indicated by the_________.
![Page 34: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/34.jpg)
Answer 4 – 10
• Principal quantum numbers.
![Page 35: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/35.jpg)
Question 4 - 20
At n=2, the total number of electrons that could be found is____.
![Page 36: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/36.jpg)
Answer 4 – 20
8 electrons.
![Page 37: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/37.jpg)
Question 4 - 30
• Which principle states that no two electrons in the same atom can have the same set of quantum numbers?
![Page 38: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/38.jpg)
Answer 4 – 30
• Pauli exclusion
![Page 39: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/39.jpg)
Question 4 - 40
• What is the electron configuration for aluminum?
![Page 40: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/40.jpg)
Answer 4 – 40
1s22s22p63s23p1
![Page 41: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/41.jpg)
Question 4 - 50
• What are the 4 quantum numbers for Sulfur?
![Page 42: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/42.jpg)
Answer 4 – 50
3, 1, -1, -1/2
![Page 43: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/43.jpg)
Question 5 - 10
What are three properties of a covalent compound?
![Page 44: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/44.jpg)
Answer 5 – 10
1. Low melting/boiling points2. Non-conductors3. Wide variety of textures4. Do not form crystals
![Page 45: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/45.jpg)
Question 5 - 20
• What shape will NH3 exhibit?
![Page 46: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/46.jpg)
Answer 5 – 20
• Trigonal pyramidal
![Page 47: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/47.jpg)
Question 5 - 30
The model used to describe and explain the bonding and arrangement of atoms in a solid metal is the_______
![Page 48: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/48.jpg)
Answer 5 – 30
• Electron sea/sea of electrons model
![Page 49: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/49.jpg)
Question 5 - 40
• What type of bonding exists between nitrogen and hydrogen?
![Page 50: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/50.jpg)
Answer 5 – 40
• Polar-covalent bond
![Page 51: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/51.jpg)
Question 5 - 50
Describe polar bonds and what leads to a polar covalent bond.
![Page 52: 9 week exam Review](https://reader035.vdocument.in/reader035/viewer/2022062422/568134a3550346895d9ba5bc/html5/thumbnails/52.jpg)
Answer 5 – 50
• Difference in electronegativity leads to an UNEQUAL sharing of electrons. One atom will pull the electron pair closer to it leaving a partial positive on the other atom while gaining a partial negative charge.