unit 2 organic chemistry and instrumental analysis Flashcards
What does molecular orbital theory state
Molecular orbital theory states that when any two atomic orbitals meet each other and overlap they will form two new molecular orbitals in which a maximum of 2 electrons can be found
what is molecular orbital theory used to describe
Molecular orbital theory is used to describe how atomic orbitals combine when atoms combine to produce molecules
what forms when atomic orbitals combine
molecular orbitals
what does The combination of two atomic orbitals result in
The combination of two
atomic orbitals results in the formation of a bonding molecular orbital and an antibonding orbital. The bonding molecular orbital encompasses both nuclei.
what is the basis of bonding between atoms
The attraction of the
positively charged nuclei and the negatively charged electrons in the bonding molecular
orbital is the basis of bonding between atoms.
what is the maximum number of electrons that each molecular orbital can hold
Each molecular orbital can hold a maximum
of two electrons.
In a non-polar covalent bond, what is the bonding molecular orbitals
In a non-polar covalent bond, the bonding molecular orbital is symmetrical about the
midpoint between two atoms.
In a polar covalent bond, what is the bonding molecular orbitals
Polar covalent bonds result from bonding molecular orbitals that are asymmetric about the midpoint between two atoms.
which atom has the greater share of the bonding electrons
The atom with the greater
value for electronegativity has the greater share of the bonding electrons.
In an ionic compound, what is the bonding molecular orbitals
Ionic compounds
are an extreme case of asymmetry, with the bonding molecular orbitals being almost
entirely located around just one atom, resulting in the formation of ions.
what is it called when Molecular orbitals that form by end-on overlap of atomic orbitals along the axis of the covalent bond
Molecular orbitals that form by end-on overlap of atomic orbitals along the axis of the
covalent bond are called sigma molecular orbitals or sigma bonds.
What are Molecular orbitals that form by side-on overlap of parallel atomic orbitals that lie perpendicular to the axis of the covalent bond called
Molecular orbitals that form by side-on overlap of parallel atomic orbitals that lie perpendicular to the axis of the covalent bond are called pi molecular orbitals or pi bonds.
what can the bonding and shape of carbon molecules be explained by
The bonding and shape of molecules of
carbon can be explained by hybridisation.
still in progress
