Atomic Radiation.  Retakes AFTER SCHOOL and during lunch Thursday or after school… WHOT:  Objective: Mathematically model how Alpha and Beta nuclear.

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Presentation transcript:

Atomic Radiation

 Retakes AFTER SCHOOL and during lunch Thursday or after school… WHOT:  Objective: Mathematically model how Alpha and Beta nuclear reactions.  Responsibilities: Alpha’s Beta’s and Gamma’s WS due Thursday.

Particle Symbol Gamma  Composition Charge Mass (amu) Shielding (what will stop it) Biological Damage

Composition Alpha particle = Helium Nucleus (2 protons & 2 neutrons) Charge2+ Mass (amu)4 amu Shielding Biological Damage

CompositionBeta particle = Electron Charge1- Mass (amu)0 amu Shielding Biological Damage

CompositionPositron (think of it as a positive electron that lives in the nucleus) Charge1+ Mass (amu)0 amu ShieldingAl-foil, glass, plastic Biological Damage Ingested/Inhaled, some external

CompositionElectromagnetic Radiation (energy) Charge0 Mass (amu)0 amu Shielding Biological Damage

Create a question and answer about alpha or beta decay

 Retakes AFTER SCHOOL and during lunch Thursday or after school…  WHOT:  Objective: Summarize the 3 types of nuclear radiation and their effects on us.  Responsibilities: 10.1 questions and Alpha’s Beta’s and Gamma’s WS due Thursday!  (also no quiz Friday)

 Green Book pg Cornell notes (2 column notes). Answer questions 1-7 on pg 297 on separate sheet of paper. Key Vocab!!! Main Idea

 Create a question and answer about how radiation effects you.  Challenge… If you were very keen in your reading, use the word ionization in your whot Q

 Quiz retakes Today during lunch or after school. Tomorrow Last day.  Objective: Model how radioactive elements decay over time.  Responsibilities: 10.1 Green Book questions due Tomorrow by the end of the day... Vocab: Half Life.

 Half-life – The time it takes for half of a radioactive sample to decay.  Step 1: Use pennies to simulate half lives.  Step 2: Get graph paper and rubric. Tape into journals.  Step 3: Graph and conclusion questions.

Experimental- its what we record Theoretical- Its what we predict based on a mathematical model or well supported idea.

 Create a question and answer about Half- life.  Not the game.

Physical & Mathematical Representation

Aluminum-24 will undergo alpha-decay An alpha particle is emitted from the nucleus of the parent isotope The remaining atom is the daughter isotope  + 2 charge taken from Al nucleus Charge of new nucleus is 2 less than Al This is the atomic #; Identifies element 4 amu taken from Al nucleus Mass of new nucleus is 4 amu less than Al

Carbon - 14 will undergo beta-decay –A beta particle is emitted from the nucleus of the parent isotope –A neutron converts to a proton, and remaining atom is the daughter isotope 

Carbon - 11 will undergo beta-decay –A positron is emitted from the nucleus of the parent isotope –A proton converts to a neutron in the nucleus, and the remaining atom is the daughter isotope 

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