1516 atomic charges starter practice application connection exit materials attract or repel use what...
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15 16Atomic 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 Skin
Charged Plasticand Neutral Desk
Charged Plasticand Charged Plastic
Can you explain why the electrons don’t leave their orbits of the atom?
9/4/14 9/4/14Atomic Charges
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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 Page8/29 Syllabus /Notebook Guidelines 1-28/29 Periodic Table/ Formula 3-48/29 Tools/ Measurement 5-68/29 Lab Report/ Investigations 7-88/29 Restroom passes/Homework Log 9-109/2 Atomic Theory Research notes 11-12 9/3 Atomic Structure 13-149/4 Atomic Charges 15-16
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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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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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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Can you explain why the electrons don’t leave their orbits of the atom?
Exit:
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15 16Atomic 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 Skin
Charged Plasticand Neutral Desk
Charged Plasticand Charged Plastic
Can you explain why the electrons don’t leave their orbits of the atom?
9/4/13 9/4/13Atomic Charges