2. Which pair of elements will likely form an ionic bond?

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Presentation transcript:

2. Which pair of elements will likely form an ionic bond? Week 8 1. An ionic bond results from _________ electrons, while a covalent bond is a result of ______ electrons. shared, transferred C. outer, inner transferred, shared D. inner, outer 2. Which pair of elements will likely form an ionic bond? K and H C. K and Cl N and C D. C and H

3. How many atoms of oxygen are present in one molecule of H2SO4? 2 D. 8 4. Which pair of elements has the most physical and chemical properties in common? a. Ge and Se b. K and Kr c. Al and Ga d. Ba and Bi

5. Silver is a transition metal that carries a charge of +1 as an ion 5. Silver is a transition metal that carries a charge of +1 as an ion. Bromine is a halogen that produces an ion with a -1 charge. Which of the following chemical formulas correctly represents 2 molecules of silver bromide? 2AgBr C. Ag2Br2 Ag(Br)2 D. 2Ag2Br2 6. What is the chemical formula stable ionic compound formed between magnesium and nitrogen? MgN C. Mg3N2 Mg2N3 D. MgN2

7. When barium metal reacts with chlorine gas it forms an ionic compound. What is the chemical formula for barium chloride? BaCl c. Ba2Cl2 Ba2Cl d. BaCl2 8. Magnesium loses two electrons to form magnesium ions. Chlorine gains one electron to form chloride ions. Select the correct formula for magnesium chloride. MgCl C. MgCl2 Mg2Cl D. Mg2Cl2

10. What is the correct formula for the compound lithium oxide? 9. The compound formed from the elements calcium and chlorine is known as Chlorine calcide C. Calcium chloride Calcium dichloride D. Calcium chlorate 10. What is the correct formula for the compound lithium oxide? LiO Li2O LiO2 Li2O2