Nuclear Decay
Presentation
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Chemistry, Physics
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9th - 12th Grade
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Practice Problem
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Medium
Standards-aligned
Beth VanOstrand
Used 305+ times
FREE Resource
6 Slides • 11 Questions
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Nuclear Decay
Strong Nuclear Force, Alpha, Beta, Gamma
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Unstable Nuclei = Radiation
Atoms with more than 84 protons are unstable
Radioactivity is the emission of particles/energy from the nucleus
The nucleus is too big
This gradually makes more stable isotopes
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Multiple Select
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Alpha
Alpha decay releases 2 protons and 2 neutrons from the unstable nuclei
This forms a new atom with an atomic number 2 fewer than the original
The mass number also decreases by 4
Alpha radiation is the least harmful
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Beta
Unstable nuclei result in a neutron splitting into an electron and a proton
The proton stays in the nucleus
The electron (Beta Particle) gets ejected
This makes a new atom with an atomic number 1 greater than the original
The mass stays the same
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Gamma
Unstable nuclei results in the release of high energy radiation
Gamma rays are pure energy (no mass, no charge) & travels at the speed of light!
It is usually released with alpha or beta particles
The nucleus remains the same following this release
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
Nuclear Decay
Strong Nuclear Force, Alpha, Beta, Gamma
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