Alpha Decay

 This simulation-based resource elucidates the alpha decay process. The concept of how half-life is associated with alpha decay is illustrated. The student will observe through simulation that an element undergoing alpha decay ejects an alpha particle, which is actually a helium nucleus, from its nucleus, becoming a different element. This simulation is particularly effective in underscoring the concept of half-life. In the single-atom view, the decay process appears to occur at random times. In the multiple-atom view, the results are much more predictable, with roughly half of the atoms decaying by the time one half-life has elapsed. The more atoms in the sample, the more predictable is the time at which half the atoms have decayed.

Standards & Objectives

Academic standards
CCSS.ELA-Literacy.L.9-10.3
Apply knowledge of language to understand how language functions in different contexts, to make effective choices for meaning or style, and to...
CCSS.ELA-Literacy.RI.9-10.1
Cite strong and thorough textual evidence to support analysis of what the text says explicitly as well as inferences drawn from the text.
CCSS.ELA-Literacy.RL.9-10.1
Cite strong and thorough textual evidence to support analysis of what the text says explicitly as well as inferences drawn from the text.
CCSS.ELA-Literacy.W.9-10.1
Write arguments to support claims in an analysis of substantive topics or texts, using valid reasoning and relevant and sufficient evidence.
CCSS.ELA-Literacy.W.9-10.2
Write informative/explanatory texts to examine and convey complex ideas, concepts, and information clearly and accurately through the effective...
CCSS.ELA-Literacy.W.9-10.3
Write narratives to develop real or imagined experiences or events using effective technique, well-chosen details, and well-structured event sequences.
CCSS.ELA-Literacy.W.9-10.4
Produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience....
CCSS.ELA-Literacy.W.9-10.5
Develop and strengthen writing as needed by planning, revising, editing, rewriting, or trying a new approach, focusing on addressing what is most...
CCSS.ELA-Literacy.W.9-10.9
Draw evidence from literary or informational texts to support analysis, reflection, and research.
CLE 3001.3.1
Write in a variety of modes for different audiences and purposes.
CLE 3001.3.3
Organize ideas into an essay with a thesis statement in the introduction, well constructed paragraphs, a conclusion, and transition sentences that connect...
CLE 3001.3.4
Revise documents to develop or support ideas clearly, address potential objections, ensure effective transitions between paragraphs, and correct errors in lo
CLE 3001.5.1
Use logic to make inferences and draw conclusions in a variety of challenging oral and written contexts.
CLE 3001.5.2
Analyze text for fact and opinion, cause/effect, inferences, evidence, and conclusions.
CLE 3001.5.3
Evaluate an argument, considering false premises, logical fallacies, and the quality of evidence presented.
CLE 3001.5.4
Analyze the logical features of an argument
CLE 3001.8.4
Analyze works of literature for what is suggested about the historical period in which they were written.
CLE 3002.3.1
Write in a variety of modes for different audiences and purposes.
CLE 3002.3.3
Organize ideas into an essay with a thesis statement in the introduction, wellconstructed paragraphs, a conclusion, and transition sentences that connect...
CLE 3002.3.4
Revise documents to develop or support ideas clearly, address potential objections, ensure effective transitions between paragraphs, and correct errors in logic.
CLE 3002.5.1
Use logic to make inferences and draw conclusions in a variety of challenging oral and written contexts.
CLE 3002.5.2
Analyze text for fact and opinion, cause-effect, inferences, evidence, and conclusions.
CLE 3002.5.3
Evaluate an argument, considering false premises, logical fallacies, and the quality of evidence presented.
CLE 3002.5.4
Analyze the logical features of an argument.
CLE 3002.8.4
Analyze works of literature for what is suggested about the historical period in which they were written.
CLE 3231.6.3
Explore the dynamics of the nucleus: radioactivity, radiocarbon/uranium dating, and half-life.
SPI 3001.3.10
Identify the targeted audience for a selected passage.
SPI 3001.3.14
Select the most precise word to provide clarity appropriate to audience and purpose.
SPI 3001.3.3
Choose the transitional device that appropriately connects sentences or paragraphs within a writing sample.
SPI 3001.3.4
Select a vivid word (e.g., adjective, adverb, verb) to strengthen a written description.
SPI 3001.5.1
Make inferences and draw conclusions based on evidence in text.
SPI 3002.3.11
Identify the targeted audience for a selected passage.
SPI 3002.3.15
Select the most precise word to provide clarity appropriate to audience and purpose.
SPI 3002.3.3
Choose the transitional device that appropriately connects sentences or paragraphs within a writing sample.
SPI 3002.3.4
Select a vivid word (e.g., adjective, adverb, verb) to strengthen a written description.
SPI 3002.5.1
Make inferences and draw conclusions based on evidence in text.
TSS.ELA.9-10.L.KL.3
Apply knowledge of language to understand how language functions in different contexts, to make effective choices for meaning or style, and to comprehend ...
TSS.ELA.9-10.RI.KID.1
Analyze what a text says explicitly and draw inferences; cite the strongest, most compelling textual evidence to support conclusions.
TSS.ELA.9-10.RL.KID.1
Analyze what a text says explicitly and draw inferences; cite the strongest, most compelling textual evidence to support conclusions.
TSS.ELA.9-10.W.PDW.4
Produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience.
TSS.ELA.9-10.W.PDW.5
Develop and strengthen writing as needed by planning, revising, editing, rewriting, or trying a new approach, focusing on addressing what is most...
TSS.ELA.9-10.W.RBPK.9
Support and defend interpretations, analyses, reflections, or research with evidence found in literature or informational texts, applying grade band...
TSS.ELA.9-10.W.TTP.1
Write arguments to support claims in an analysis of substantive topics or texts, using valid reasoning supported by relevant and sufficient evidence.
TSS.ELA.9-10.W.TTP.2
Write informative/explanatory texts to analyze and convey complex ideas, concepts, and information clearly and accurately through the effective selection...
TSS.ELA.9-10.W.TTP.3
Write narrative fiction or literary nonfiction to convey experiences and/or events using effective techniques, well-chosen details, and well-structured...
 
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Lesson Variations

Blooms taxonomy level: 
Understanding

References

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