+ 1.update your completion chart. 2.shade in your most recent grade on your tracker. 3.work on the...

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+ 1. Update your completion chart. 2. Shade in your most recent grade on your tracker. 3. Work on the Neuron Activation TO DO: 1. Draw a Lewis Dot Diagram for an atom that has 8 electrons at its ground state.

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1. Update your completion chart.

2. Shade in your most recent grade on your tracker.

3. Work on the Neuron Activation

TO DO:

1. Draw a Lewis Dot Diagram for an atom that has 8 electrons at its ground state.

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+The Breakdown of the Day

Explore – Nuclear Particles

Understand – How to write nuclear decay reactions

Opportunity – Gain an understanding of why things are radioactive

ChemMastery ?

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+The History of the Atom

1. Radioactivity: When materials _______________ _____________ they become radioactive.

+The History of the Atom

2 Two main reasons why particles are radioactive:

a. Some particles are naturally radioactive because of their _______________. ____________________ is the last element in the periodic table that has a stable, nonradioactive isotope.

b. If the mass of an isotope is greater than the __________________________________.

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Composition Mass Charge Penetration

Composition Mass Charge Penetration

Composition Mass Charge Penetration

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Composition Mass Charge Penetration

Composition Mass Charge Penetration

Composition Mass Charge Penetration

24He

-10e

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Composition Mass Charge Penetration

Composition Mass Charge Penetration

Composition Mass Charge Penetration

24He

-10e

00γ

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Composition Mass Charge Penetration

Composition Mass Charge Penetration

Composition Mass Charge Penetration

24He

-10e

00γ

+Combinations and Decay

3. If you add two particles to form a product, then the particles are _____________.

4. If you take one particle and split it into two, then the particles are _______________.

+1) Write your initial atoms2) Make sure the atomic numbers and atomic masses on one side of the equation equal the atomic numbers and masses of the other side of the equation.

Finish the equation for the following reactions

Nitrogen-14 combines with an alpha particle

714N + ___ →___

+1) Write your initial atoms2) Make sure the atomic numbers and atomic masses on one side of the equation equal the atomic numbers and masses of the other side of the equation.

Finish the equation for the following reactions

Fluorine-20 went through beta decay.

920F →___ +___

+Guided Practice

Hot Seat-3 problems

-3 tries

-best time wins

+Problem 1 Fill in the information for an ALPHA PARTICLE

Composition Mass Charge Penetration

+Problem 1 Fill in the information for an BETA PARTICLE

Composition Mass Charge Penetration

+Problem 1 Fill in the information for an GAMMA PARTICLE

Composition Mass Charge Penetration

+Problem 2Write the following decaying reaction

Nitrogen-15 went through BETA decay.

715N →___ +___

+Problem 2Write the following decaying reaction

Bromine-83 went through ALPHA decay.

8335Br →___ +___

+Problem 2Write the following decaying reaction

Chlorine-38 went through BETA decay.

1738Cl →___ +___

+Problem 3Write the following combination reaction

Uranium-92 combined with a BETA PARTICLE.

92238U +___ →___

+Problem 3Write the following combination reaction

Plutonium-244 combined with an ALPHA PARTICLE.

94244Pu +___ →___

+Problem 3Write the following combination reaction

Polonium-209 combined with an BETA PARTICLE.

84209Po +___ →___