Covalent Bonding Flashcards
What is covalent bonding?
The strong electrostatic attraction between a shared pair of electrons and the nucleus of bonded atoms
What is covalent bonding between?
Non-metals
Compounds of non-metals
Polyatomic ions
What do the configurations of bonding atoms in a covalent bond replicate?
The electron configuration of a noble gas
What kind of attraction is present in covalent bonds?
Localised bonding (forces of attraction only acting on two bonding atoms
How many covalent bonds does carbon need for a full outer shell?
4 bonds
How many covalent bonds does nitrogen need for a full outer shell?
3 bonds
How many covalent bonds does oxygen need for a full outer shell
2 bonds
How many covalent bonds does hydrogen need for a full outer shell?
1 bond
What is an exception for covalent bond’s electron configuration?
Boron Trifluoride (only 6 electrons around the boron atom)
What are double bonds?
Electrostatic attraction between two shared pairs of electrons
What are dative covalent bonds?
Where the electrons shared between is supplied by only one bonding atom
What can dative bonds also be called?
Coordinate covalent bonds
What does average bond enthalpy measure?
How strong a covalent bond is
What are the units for average bond enthalpy?
Kilojoules per mole (Kj/mol)
What is overlapping in covalent bonds?
Atomic Orbitals
