S3 Ionic & Metallic Bonding
Ionic bonds form between what types of atoms?
Metals and non-metals
What is an ion?
An atom with a charge (+ or -).
Metal ions are made when metal atoms do what?
Lose all of the electrons from their outer (valence) shell.
Non-metal ions are formed when non-metal atoms do what?
Gain electron(s) to fill their outer (valence) shell.
If an atom gains electrons it becomes a negative anion. True or false?
What is the name given to positive ions?
They are called cations (a way to remember is to write the 't' in cation as a +, i.e. ca+ion).
The structure of any ion is the same as which group in the periodic table?
The Noble gases (Group 8)
What is the charge on any group 1 metal ion?
What is the charge on any group 2 metal ion?
What is the charge on a group 5 non-metal ion?
3- (because it gains 3 electrons)
What is the charge on a group 6 non-metal ion?
What is the charge on a group 7 anion?
Metallic bonds are formed between what kind of atoms?
What are metal ions called?
Metallic bonds are made when metal atoms do what?
Lose all of their outer shell (valence) electrons.
In a metallic bond where are the electrons found?
In the 'sea of free electrons'.
What stops the metal ions from repelling each other?
The 'sea of free electrons'.
What is the name of the force holding the metal ions in the lattice surrounded by a sea of free electrons?
A metallic bond.