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Published byJeremy Palmer Modified over 5 years ago
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Jumpstart #3D 1) What are the three main types of nuclear decay particles? 2) What are the symbols for all three kinds? Do not forget to include the mass and atomic numbers!
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Writing Nuclear Equations
In the reactants and products Atomic numbers must balance and Mass numbers must balance REMEMBER THE CONSERVATION OF MASS/MATTER LAW??? Mass # (p+n) A Sy Atomic # (p) Z
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Alpha Decay
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Beta Emission: A beta particle is just like an e-.
When beta decay happens, the nucleus changes a neutron into a proton and an e-, and emits the e-
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No change in atomic or mass number
Gamma Radiation: No change in atomic or mass number boron atom in a high-energy excited state
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Gamma rays: These are dangerous EMR waves with no significant mass that are usually emitted with other types of radiation. They penetrate very deeply. The Symbol:
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Balancing Nuclear Equations
238 Remember that the # of PROTONS determines which ELEMENT it is!!! 92
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Practice Alpha Emission Problem
239 – 4 = 235 ? 94 – 2 = 92 235 Sy 92
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Practice Problems ? ?
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Practice Problems – they can get weird!
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Nuclear Fission
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Nuclear Fusion Powers the Sun POSITRON
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Chain Reaction
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Daughter Product (Decay Product)
Parent Atom What you start with Daughter Product (Decay Product) The new atom that is made
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Decay Series The daughter product of one reaction is still unstable. It will decay into a new daughter product. The daughter product becomes a parent atom for a new reaction!
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n:p ratio 143/89 = 1.6 FIND THE NEUTRON TO PROTON RATIO Parent Atom
Daughter Product Parent Atom Parent Atom Daughter Product n:p ratio 143/89 = 1.6 Daughter Product FIND THE NEUTRON TO PROTON RATIO
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