Use the image below to answer the question. A student illustrated this Bohr model for the element Silicon. Which changes would have made the model accurate?
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Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

What is the percent by mass of oxygen in fe2o3