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8. List all of the precautions that must be taken when setting up and using the boiling point
determination apparatus. Do not list "wear goggles. You must ALWAYS wear goggles when
working with glassware and chemicals Focus on safety and procedural precautions that are specific
to the boiling point determination technique

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Which statement is best described as a atom