Structure and bonding Flashcards
C1.1 - C1.8 Pg 36-47
1
Q
What is an ion?
A
An ion is an atom with the ‘wrong’ amount of electrons
2
Q
How are ions formed?
A
When an atom loses or gains electrons to obtain a full outer shell
3
Q
How are positive ions formed?
A
Metal atoms lose electrons from their outer shell when they form ions:
the ions are positive, because they have more protons than electrons
the ions have the electronic structure of a noble gas (group 0 element), with a full outer shell
4
Q
How are negative ions formed
A
The outer shells of non-metal atoms gain electrons when they form ions:
the ions formed are negative, because they have more electrons than protons
the ions have the electronic structure of a noble gas (group 0 element), with a full outer shell
5
Q
What is ionic bonding
A
