Topic 12: Molecular Orbital Theory, Video A: Visualizing Sigma Bonds From S Orbitals Flashcards Preview

General Chemistry 102 > Topic 12: Molecular Orbital Theory, Video A: Visualizing Sigma Bonds From S Orbitals > Flashcards

Flashcards in Topic 12: Molecular Orbital Theory, Video A: Visualizing Sigma Bonds From S Orbitals Deck (10):
1

What does it mean when waves are in phase?

It means the waves have the same frequency and amplitude and have the same peaks and valleys. This makes a new larger wave (constructuve interference).

2

What does out of phase mean?

It means you subtract waves. (destructive interference, lower amplitude.)

3

What is the difference between VBT and MO theory?

VBT allow for only paired electrons (not all electrons are paired) No prediction for paramagnetism in molecules.

4

What are the 2 planes of symetry?

xy, xz

5

What happens when atoms are out of phase?

Nuclear repulsions are maximized and no bond is formed. (called antibonding).

6

What is the third difference with VBT?

VBT does not allow for spectroscopy (can only analyze molecules in their ground state.

7

What is the first difference between VBT and MOT.

MO and VBT electron density are different.

8

What are the 3 planes of symetry?

xy, xz, and yz

9

What is the axis of rotation?

Where you rotate the atom and the shape does not change.

10

What happens when atoms are in phase?

Nuclear repulsions are minimized and a bond is formed.

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