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1. (10 pts) With the help of the periodic table, give the number of protons, neutrons, and electrons in the following isotopes:  
  (a)  strontium-90   (b)  cesium-137   (c)  iodine-131.       
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(a)                            (b)                  (c)           
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EDU 548 Planning for Instructions

Creating engaging lessons that include activities and assessments aligned to objectives and course outcomes is one of the responsibilities of a higher education instructor. While it is not always necessary for higher education instructors to create daily lesson plans, knowing how to create a lesson ...

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Management

 Weigh out each of the empty 4 jars/containers and record their weights in the table provided.  2. Separately weigh about 10 g of each food, place it in separate zip-lock bags and crush each food item. Be careful as seeds are sharp and may pierce the bag. It does not need to be finely crus ...

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CHEM101 General Chemistry

Questions: It has always been interesting to see how a teacher writes down the formula of various compounds with different subscripts of each symbol in the formula, example Na2S, HCl, K2O, MgCl2 etc. You might have wondered how much time they might have spent on memorizing the formulae for all ...

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Solid State Devices

How you can create a tensile and compressive stressor layer of Si3N4 using PECVD method? What is the scientific formulation behind that? 2. In the classroom, we discussed about a Professor whose research has produced the maximum number of a specific thin film deposition source material. Go to that ...

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