NAME:______DATE:______2.1 Ionic Bonding Lab 2 AHS Instructor Ms. Kasia Room 109/110 UNIT 2 CHEMICAL BONDING: COVALENT 2.1 Ionic Bonding Lab 2 AIM:

DO NOW: Please complete the row of your assigned compound in 1.6 Independent Practice Worksheet. Write the name of the compound on the poster.

TOTAL POINTS /25 Laboratory Conduct b (student behaved appropriately during the lab) /5 Activity (student completed the activity) /10 Discussion Questions (questions are completed successfully) /10

ACTIVITY Directions: Answer the INTRODUCTORY QUESTION. Complete the IONIC COMPOUNDS section. Complete the DISCUSSION QUESTIONS.

INTRODUCTORY QUESTIONS. 1. What are ionic bonds?

IONIC COMPOUNDS 1. Draw the Lewis structures of the two atoms in the compound. 2. Indicate whether the element is a metal, metalloid or a nonmetal. 3. Indicate how many electrons the atoms wants to gain and how many it wants to lose. 4. Show the transfer of electrons and write down the ion that is formed after the transfer of electrons. 5. Write the completed formula.and the name of the compound.

COMPOUND: NaCl

Metal Metalloid Nonmetal Metal Metalloid Nonmetal

Na: Cl:

Gain: ______electrons Gain: ______electrons

Lose: ______electrons Lose: ______electrons

Ion formed Na: Cl: Chemical Name of the Formula Compound

COMPOUND: Rb2O

Metal Metalloid Nonmetal Metal Metalloid Nonmetal

Rb: O:

Gain: ______electrons Gain: ______electrons

Lose: ______electrons Lose: ______electrons

Ion formed Rb: O:

Chemical Name of the Formula Compound

DISCUSSION QUESTIONS 1. What happens with the electrons when metals and nonmetals bond?

2. What do metals such a Mg, Ca, and Na tend to do with electrons? Explain why.

3. What do nonmetals such as F, Cl, and O tend to do with electrons. Explain why.

4. Why are noble gases such as Ar and Kr not involved in bonding? 5. What is the charge of atoms when electrons are lost? Explain why.

6. What is the charge on the overall compound when electrons are transferred? Explain why.

7. When electrons are lost, what happens to the atomic radius?

8. What is the charge of atoms when electrons are gained? Explain why.

9. When electrons are gained, what happens to the atomic radius?

10. Circle the compounds that are IONIC

CH4 MgCl2 CaBr2 AlBr3 AgNO3 H2O CO2 NH3

If time permits and you have completed the LAB: Directions: Pick one of the compounds in question #10 that you did not circle. Explain (in at least 2-3 sentences) why the compound is not IONIC. You may want to use the following words

ELECTRONS COVALENT NONMETAL METAL