structure and bonding Flashcards
What is meant by the term non polar
Bonding electrons are shared equally
between atoms so there is no dipole
explain what is meant by a pure covalent bond
Both atoms have same
electronegativity
Name the structure and bonding from the highest to he lowest boiling point
covalent network
metallic
ionic
covalent molecular
Explain why methanol has a higher boiling point than methane
methanol has a hydroxyl group which is polar and can therefore form hydrogen bonding
ethane is non polar and so can only form LDF
hydrogen bonding is stronger than LDF resulting in a higher boiling point
Do covalent network structures have LDF
no
What are diatomic elements
two atoms covalently bonded
What is the most electronegative element
fluorine
What is pure covalent bond
when two atoms share bonding electrons equally
What are the intermolecular forces
van der waals forces
What is miscibility
the ability of liquids to mix in all proportions forming a solution
What is the molecular formula for fullerine
C60
What type of structure does silicon dioxide have
covalent network
Describe a non polar covalent bond
there is unequal sharing of the bonding electron
What type of bonds is only found in elements
pure covalent bond
