Structure and Bonding Flashcards
What is the name of bonding inside molecules?
Intramolecular Bonds
What is the name of bonding between molecules?
Intermolecular Bonds
Intramolecular bonding types have different properties but can all be arranged in what?
A bonding continuum. This is where the bonding present inside molecules has varying degrees of ionic character
What is a covalent bond?
A covalent bond is a shared pair of electrons, electrostatically attracted to the positive nucleus of two atoms
Why do atoms share electrons?
In order to achieve a stable outer electron arrangement (a noble gas arrangement)
What is a pure covalent bond?
This is a bond that exists between two atoms with the same electronegativies, but pure covalent does not have an ionic character
Why are diatomic elements a good examples of pure covalent bonding?
Because the electrons are shared equally between both nuclei
How is a polar covalent bond formed?
The bond is formed when a shared pair of electrons is not shared equally.
What is the cause of electrons not being shared equally?
This is due to one of the elements having a higher electronegativity than the other
Ionic are normally formed between what?
Between a metal and a non-metal with a large difference electronegativity
How are ionic atoms ions arranger?
In a 3-dimensional ionic lattice of positive and negative ions
The type of bonding present in a compound is determined by what?
The difference in electronegativity between the elements involved
Intermolecular bonds are between what and known as what?
They are found molecules and Var Der Waals forces
What is the weakest intermolecular bond and where do they exist?
London Dispersion Forces and they exist between all atoms and molecules
What will molecular and monatomic elements do?
They will condense, forming solids if cooled to suffice rly low temperatures
