Bonding Flashcards
What is ionic bonding?
The electrostatic attraction between oppositely charged ions in a lattice.
Formula of sulfate
SO4^2-
Formula of hydroxide
OH-
Formula of nitrate
NO3-
formula of carbonate
CO3^2-
Formula of ammonium
NH4 -
Describe the mp and bp of ionically bonded substances?
High mp and bp
requires lots of energy to break the strong electrostatic forces
Do ionic compounds conduct electricity?
Yes, only when they are molten. As the ions are free to move and carry a charge.
What is a covalent bonding?
A chemical bond between non-metals, in which electrons are shared between the atoms.
Can simple molecular covalent bonds conduct electricity?
No, all electrons are used in bonding and aren’t free to move.
Describe the mp and bp of simple molecular substances
Low
weak van der waals forces
Don’t require much energy to overcome
Define a dative covalent bond
When one atom donates both electrons to the shared pair
What is macromolecular covalent bonding?
Lattice of many atoms joined together by covalent bonds.
Describe mp and bp of macromolecular covalent bonds
High
requires a lot of energy to overcome strong covalent bonds
Do substances with macromolecular bonds conduct electricity?
Most don’t as all electrons are used in bonding.
