T5 - Ions, Ionic Bonding and Giant Ionic Structures Flashcards
1
Q
What is an ion?
A
an electrically charged atom or a group of atoms that are formed by the loss or gain of electrons
2
Q
What do ions have the same electronic structure as?
A
noble gases
3
Q
Why do atoms lose or gain electrons?
A
to gain a full outer shell
4
Q
What is an ionic bond?
A
Strong electrostatic force of attraction between oppositely charged ions.
5
Q
Why do ionic compounds have high melting and boiling points?
A
they have giant ionic structures - giant ionic structures have strong electrostatic forces of attraction which require a lot of energy to overcome
6
Q
why do ionic compounds not conduct electricity when solid
A
ions are not free to move
7
Q
why do ionic compounds conduct electricity when molten and in aqueous solution
A
the ions are free to move
