Unit 1 Flashcards
Where is the probability of finding an electron in S orbitals?
The probability is highest near the nucleus and decreases as we move outward
Where is the probability of finding electrons in P orbitals?
There is equal probability of finding electrons in either lobe but is 0 in the nodal plane
What does the Aufbau principle state?
Lowest energy orbitals are filled first
What does Pauli’s exclusion principle state?
Only two electrons can occupy and orbital and they must have opposite spins
What is Hund’s rule?
If two or more empty orbitals of equal energy are available, one electron occupies each with their spins parallel until all are half filled
Where are expanded Octets common?
For elements in the third row and beyond
How does electronegative increase?
As you move up and to the right of the periodic table
What is a bond dipole?
The difference in electronegativity between atoms of a bond
What are Sigma bonds?
Bonds that form between 2 hybrid orbitals
Why kind of bonding results in a sigma bond?
Head on bonding
What kind of bonding results in a pi bond?
Indirect site by side bonding
What kind of bond is stronger?
Sigma bonds on stronger because there is more orbital overlap making them more stable and less reactive
What do electrons in a bonding orbital do?
Stabilize a molecule
What do electrons in an anti bonding orbital do?
Destabilize a molecule
