Review of Experimental GAPT and Infrared Atomic Charges in ...
Atomic Charges
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Transcript of Atomic Charges
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23 24Atomic Charges
Starter
Practice
Application
Connection
Exit
Subatomic Particle
Fact 1
Fact 2
Fact 3
Charge Symbol
Proton
Neutron
Electron
9/9/13 Atomic Charges9/9/13
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Agenda 1. Starter
2.Atomic Charges Notes 3. Atomic Charges
Activity 4. Exit
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Date Lecture/ Activity/ Lab Page8/28 Syllabus /Notebook Guidelines 1-28/28 Periodic Table/ Formula 3-48/28 Tools/ Measurement 5-68/28 Lab Report/ Investigations 7-88/28 Restroom passes/Homework Log 9-108/29 Safety equipment 11-128/30 Atoms Vocabulary 13-14 9/3 Atomic Theory Research notes 15-16 9/4 Observation Activity 17-18 9/5 Model Activity 19-20 9/6 Atoms Notes 21-229/9 Atomic Charges 23-24
Table of Contents
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StarterProton Electron
Neutron
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Subatomic Particle
Fact 1 Fact 2 FACT 3 Charge Symbol
Proton
Neutron
Electron
Practice:FOUND IN NUCLEUS
ALWAYS EQUAL TO ELECTRONS IN A NEUTRAL ATOM
POSITIVE CHARGE
FOUND IN NUCLEUS
USED TO HOLD PROTONS IN THE NUCLEUS
NEUTRAL (NO CHARGE)
FOUND IN ELECTRON CLOUD OUTSIDE THE NUCLEUS
ALWAYS EQUAL TO PROTONS IN A NEUTRAL ATOM
NEGATIVE CHARGE
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23 24Atomic Charges
Starter
Practice
Application
Connection
Exit
Subatomic Particle
Fact 1
Fact 2
Fact 3
Charge Symbol
Proton
Neutron
Electron
Materials Attract or Repel
Use what you know about electrons, protons, and charges to explain your observations
Charged Plasticand Charged SkinCharged Plasticand Neutral DeskCharged Plasticand Charged Plastic
Atomic Charges9/9/13 9/9/13
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Materials Attract or Repel
Use what you know about electrons, protons, and charges to explain your observations
Charged Plasticand Charged Skin
Charged Plasticand Neutral Desk
Charged Plasticand Charged Plastic
Application:
Part A
Part B
Part C
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1. Cut two strips of grocery bag; about 2-4 cm wide and about 20 cm long
2. Hold the plastic strip firmly at one end. Then grasp the plastic strip between the thumb and fingers of your other hand
3. Quickly pull your top hand up so that the plastic strip runs through your fingers. Do this three or four times.
4. Allow the strip to hang down. Then bring your other hand near it.
5. Write “attract” or “repel” in the chart in your notebook
6. Describe what happened in the chart in your notebook .
Procedure:Charged Plastic and Charged Skin
Part A
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WHAT IS HAPPENING?Protons and Electrons before Rubbing
Protons and ElectronsAfter Rubbing
Opposites Attract!
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1. Charge one strip of plastic the same way you did previously.
2. This time, bring the plastic strip toward your desk or chair.
3. Write “attract” or “repel” in your chart
4. Describe what happened in the chart in your notebook .
Procedure:Charged Plastic and Neutral Desk
Part B
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1. Charge two strips of plastic2. Slowly bring the two strips of plastic near each other.3. Write “attract” or “repel” in your chart.4. Describe what happened in the chart in your notebook .
Procedure:Charged Plastic and Charged Plastic
Part C
Two Neutral Plastic Strips Two Charged Strips Like Charges
Repel!
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23 24Atomic Charges
Starter
Practice
Application
Connection
Exit
Subatomic Particle
Fact 1
Fact 2
Fact 3
Charge Symbol
Proton
Neutron
Electron
Materials Attract or Repel
Use what you know about electrons, protons, and charges to explain your observations
Charged Plasticand Charged SkinCharged Plasticand Neutral DeskCharged Plasticand Charged Plastic
Atomic Charges9/9/13 9/9/13
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1. Inflate a balloon2. Now rub it on your hair and clothing!3. Bring the balloon slowly towards the confetti
paper 4. Draw the following pictures in your journal 5. describe what is happening in each.
Connection:
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23 24Atomic Charges
Starter
Practice
Application
Connection
Exit
Subatomic Particle
Fact 1
Fact 2
Fact 3
Charge Symbol
Proton
Neutron
Electron
Materials Attract or Repel
Use what you know about electrons, protons, and charges to explain your observations
Charged Plasticand Charged SkinCharged Plasticand Neutral DeskCharged Plasticand Charged Plastic
Can you explain why the electrons don’t leave their orbits of the atom?
9/9/13 9/9/13Atomic Charges
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Can you explain why the electrons don’t leave their orbits of the atom?
Exit:
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23 24Atomic Charges
Starter
Practice
Application
Connection
Exit
Subatomic Particle
Fact 1
Fact 2
Fact 3
Charge Symbol
Proton
Neutron
Electron
Materials Attract or Repel
Use what you know about electrons, protons, and charges to explain your observations
Charged Plasticand Charged SkinCharged Plasticand Neutral DeskCharged Plasticand Charged Plastic
Can you explain why the electrons don’t leave their orbits of the atom?
9/9/13 9/9/13Atomic Charges