November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the...
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Transcript of November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the...
![Page 1: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/1.jpg)
November 28th• Take the two worksheets.• Write down your homework• Answer the Quick Write on
the worksheet.
SWBAT:• Summarize each
scientist and philosopher’s addition to the development of the structure of the atom.
Homework:• read pgs 112 - 118
![Page 2: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/2.jpg)
The History of The Atom
• Introduction_to_the_Elements.mov
![Page 3: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/3.jpg)
November 30thQuick Write:• How are electrons kept in
orbit around the nucleus?• What descriptive words can
you use to describe Niels Bohr and his model of the atom?
SWBAT:• Summarize each
scientist and philosopher’s addition to the development of the structure of the atom.
• Explain the forces within an atom.
Homework:• review your notes and highlight key terms and complete the video worksheet
![Page 4: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/4.jpg)
Aristotle Democritus
• Greek philosopher• Believed that there
were only four elements: – water – fire– Earth– air
• Greek philosopher• Believed that matter
cannot be divided into small pieces forever.
• He named the smallest piece an atomos,
• Atomos is Greek for atom.• Atomos means indivisible.• Atom: the building block
of all matter.
![Page 5: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/5.jpg)
The Proposed Atomic Theory, by Dalton
• All elements are composed of atoms. Atoms are indivisible and indestructible.
• Atoms of the same element are exactly alike.• Atoms of different elements are not alike.• Compounds are formed by the joining of atoms of
two or more elements.
![Page 6: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/6.jpg)
Thomson’s Model
• In 1897, Thomson proposed that the atom maybe made of even smaller particles.
• He explained that there were positive charges in the atoms and negative charges scattered throughout.
• ”plum pudding”
![Page 7: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/7.jpg)
Rutherford’s Model
• Conducted an experiment concluding that the atom was mostly empty space filled with positive charges.
• Proposed that the positive charged particles were in the center of the atom, called the nucleus.
• Outside the nucleus were negative electrons scattered throughout the edge of the atom.
![Page 8: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/8.jpg)
Niels Bohr
• In 1913, Bohr believed that the electrons traveled in a definite orbit with a certain energy level and certain distance from the nucleus.
• Each energy level can hold a certain amount of electrons.
• 2-8-18-32-32
![Page 9: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/9.jpg)
December 1stQuick Write:• What are the four forces of
the atom.• Which is the strongest force• What does it act as? Explain
SWBAT:• Identify where each
electron is found according to the Bohr model.
• Draw and identify your mystery atoms!
Homework:• Finish Bohr Model worksheet • Look up the use of each element you identified on your Bohr Model worksheet.• bring in the all completed class work from Tuesday tomorrow.
![Page 10: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/10.jpg)
Modern Atomic Model
• Today we believe that the electrons do not travel a certain path.
• They do have a certain energy level.
• They are always moving
![Page 11: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/11.jpg)
The Bohr Model
• According to the Bohr model each energy level can hold a certain number of electrons.
• Starting from the first level outside of the nucleus:– Level 1: can hold 2 electrons– Level 2: can hold 8 electrons– Level 3: can hold 18 electrons– Level 4: can hold 32 electrons– Level 5: can hold 32 electrons
![Page 12: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/12.jpg)
Look at the examples below:
Secondshell
Helium2He
Firstshell
Thirdshell
Hydrogen1H
2He
4.00Atomic mass
Atomic number
Element symbol
Electron-shelldiagram
Lithium3Li
Beryllium4Be
Boron3B
Carbon6C
Nitrogen7N
Oxygen8O
Fluorine9F
Neon10Ne
Sodium11Na
Magnesium12Mg
Aluminum13Al
Silicon14Si
Phosphorus15P
Sulfur16S
Chlorine17Cl
Argon18Ar
Figure 2.8
![Page 13: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/13.jpg)
Closure
• Draw your samples on the board!
![Page 14: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/14.jpg)
Forces Within
• Electromagnetic force: is an attraction or repulsion between particles.– If the particles have the
same charge they are repelled.
– If the particles have opposing charges they are attracted to each other.
• Strong Force
![Page 15: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/15.jpg)
• Weak Force: • Gravity:
![Page 16: November 28th Take the two worksheets. Write down your homework Answer the Quick Write on the worksheet. SWBAT: Summarize each scientist and philosopher’s.](https://reader035.fdocuments.us/reader035/viewer/2022071806/56649f585503460f94c7deed/html5/thumbnails/16.jpg)
Closure
• Which force is the weakest and why?
• Which two forces keep the atom’s strucutre?