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Standard 4.0 Chemistry

Topic A. Structure of Matter

Indicator 1. Provide evidence to explain how compounds are produced.(No electron transfer)

Objective a. Describe how elements form compounds and molecules.

Selected Response Item

Use The Periodic Table of the Elements and the information below to answer the following.

Magnesium metal (Mg) is grayish-white in color and reacts actively with water. Fluorine (F2) is a greenish-yellow gas at room temperature and is a member of the halogen family. These two elements react to produce magnesium fluoride (MgF2), a chemical commonly used in making windows and lenses.

How do the elements magnesium (Mg) and fluorine (F2) produce the compound magnesium fluoride (MgF2)?

  1. by nuclear connection
  2. by physically combining
  3. by magnetic connection
  4. by chemically combining
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Correct Answer:
D