Choice Board: Types of Bonds

Master ionic, covalent, and metallic bonds! Learn about electronegativity and classify compounds.

1. Fill in the blanks Transfer of electrons results in the formation of ionic bond. Sharing of electrons results in the formation of a covalent bond.An ionic bond is formed between a metal and a nonmetal. To form an ionic compound the difference between the electronegativities of two elements combining should be greater than1.67. The cations and the anions in an ionic bond are held together with a strong force known as electrostatic attraction. Ionic compounds can conduct electricity when they are in liquid Ionic compounds have high melting and boiling points.A covalent molecule is formed when elements with similar electronegativitiescombine together. Covalent molecules are poor conductors of electricity. 2. At room temperature, I am a solid. I melt within seconds when heat is applied. When dissolved in water, I do not conduct electricity. What am I? ionic covalent metallic 3. I have an electronegativity difference of 1.89. When dissolved in water, I can form electrolytes. What am I? ionic covalent metallic 4. How is a metallic bond different from an ionic bond? List at least 2 differences. 5. Classify the following as ionic compounds or covalent molecules. ionic MgCl2 NaCl AlP Co2O3 covalent CH4 H2O CCl4 SO2 F2