Generic Molecules

Part 1 – Generic Molecules

Fill in the chart below by creating the generic molecules below. On your screen in the lower left corner, click on “ molecule geometry .” Add atoms and electron pairs as needed to produce the generic formula. Once the molecule is assembled, click and drag the screen to spin the atom around. Click on the “ Show bond angles .” Use the following key:

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· A – central purple atom – cannot be removed

· B – single bonded white atom

· C – double bonded white atom

· D – triple bonded white atom

· E – Electron pairs not bonded (lone pair)

In each box:

1. Take a screenshot from your computer and place it into the box

2. Identify which molecule from the HW yesterday corresponds to the box

3. Write the Molecular Geometry (MG)

4. Look at the central atom, is its octet satisfied?

 

Molecule   Molecule
AC2

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG ___________________________ Octet? ______

 

 

 

 

 

 

ABE3

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

 

 

AB3E

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

 

 

 

 

 

 

AB

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

ACE2

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

 

 

 

 

 

 

AB2E2

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

AB2C

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

  ABD

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

AB4

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? _____

  ADE

 

 

 

 

 

 

 

 

 

Molecule from HW:

MG _____________________________ Octet? ______

 

 

Part 2 – Octet Rule Breakers

While still in the “Real Molecules” tab, select the following molecules. Take a screenshot from your computer and place it into the box, write the molecular geometry, and write how many electrons are on the central atom.

Molecule   Molecule
SO2

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

 

 

 

 

 

 

XeF2

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

ClF3

 

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

 

 

 

 

 

 

SF4

 

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

XeF4

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

 

 

 

 

 

 

BrF5

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

PCl5

 

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

 

 

 

 

 

 

SF6

 

 

 

 

 

 

 

 

MG _____________________________ Electrons?____

 

 

 

 

 

Post Lab Questions

1. The program did not give a bond angle to a molecule consisting of only two atoms. Why? Think geometry class.

 

 

2. What happens to the bond angle within a molecule as you add more bonds to the central atom?

 

3. How does a lone pair affect the molecular geometry of a molecule?

 

 

4. Explain how the “octet rule breakers” violate the octet rule? Did all of these “octet rule breakers” violate the octet rule the same way?

 

5. Did the molecular geometry of the “octet rule breakers” match any that did follow the octet rule? If so which ones and why?

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