1.4 Exam Q Flashcards
1
Q
dot and cross for
A
2
Q
A
3
Q
A
4
Q
what does an ionic bond comprise of
A
In an ionic bond, there is an electrostatic attraction between two oppositely charged ions.
In fact, the positive ions and negative ions are arranged so that each positive ion is surrounded by several negative ions and vice versa, to maximise the attractive forces and minimise the repulsive forces.
5
Q
what does a covalent bond comprise of
A
In a covalent (and coordinate) bond, there is a strong electrostatic attraction between the shared pair of electrons and the nuclei of both atoms. This outweighs the repulsion between the electrons in the shared pair.
Also, both electrons in the bond have opposing spins to minimise this repulsion.
