An unknown element combines with fluorine to form the compou…

Questions

An unknоwn element cоmbines with fluоrine to form the compound XF3. Assume аll аtoms follow the octet rule. Drаw the most plausible Lewis Structure and answer the following questions.  What is the geometry around the central, unknown atom?  Predict approximate bond angles in this molecule. Using a mass spectrometer, the molecular mass of the compound is determined to be 88. g/mol. What is the identity of the unknown element?  Predict the formula of the ionic compound formed when element X bonds with magnesium (Mg). Explain your answer. Show your work. Note: Your answer(s) must be provided in this text box. If you are unable to show your work adequately using the Rich Text Editor, complete your work on scratch paper. Upload a photo of your work in the "Comments" of this exam immediately after you have completed and submitted the exam. You can access the "Comments" through the grade book. Answers on scratch paper alone will not be scored.

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