Electron structure

Cards (20)

What is the lowest energy orbital?
S - orbital
How many electrons fit into an orbital?
2
How many s orbitals in a s subshell?
1
How many orbitals in a p - subshell?
3
how many orbitals in a d subshell?
5
What is the exception to Aufbau's principle?
the 4s subshell fills in before the 3d subshell
What are the 2 elements that have only half fill the 4s subshell while filling the 3d subshell?
Copper and chromium
What bond angle does a trigonal planar molecule have?
120
What bond angle does a tetrahedral molecule have?
109.5
How much does a lone pair decrease bond angles by?
2.5
Why do lone pairs decrease the bond angle?
Because they repel more than bonded electron pairs
What is a tetrahedral molecule with a lone pair called?
A trigonal pyramidal, bond angle 107
What molecular shape occurs with 5 bonding pairs?
Trigonal bypiramidal, bond angle 90 and 120
What molecular shape occurs with 6 bonding pairs?
Octahedral, bond angle 90
What is the weakest intermolecular force?
Induced-induced dipole (london forces)
What is the second strongest IM force?
Permanent-induced dipole
What is the strongest IM force?
Hydrogen bonds
What are the requirements for a hydrogen bond?
A hydrogen bonded to a highly electronegative element
The three elements that can create hydrogen bonds are nitrogen, oxygen and fluorine.
What is electronegativity?
An atoms tendency to attract a bonding pair of electrons.