Bonding Flashcards
1
Q
State how a coordinate (dative covalent) bond is formed
A
A shared pair of electrons
Both electrons comes from the same atom
2
Q
Why do electrons pairs arrange themselves as far apart as possible in molecules
A
To minimise repulsion effects of electrons
3
Q
Define electronegativity
A
The power of an atom to attract a pair of electrons in a covalent bond
4
Q
What is a polar covalent bond
A
A covalent bond where the shared pair of electron is shared unequally between the two atoms
5
Q
Explain how Van der Waals forces arise?
RUTID
A
-Random movement of electrons
-Produces and uneven distribution of electrons
-Temporary dipole dipoles arrive
-This induces dipoles in neighbouring molecules
-Dipoles attracts temporarily between d+ and d-
