Metallic Bonding

Question 1

What is metallic bonding

Answer 1

The electrostatic force of attraction between positive ions and a sea of delocalised electrons in a lattice

Question 2

What does the strength of metallic bonding depend on

Answer 2

-The charge on the metal ions
-The size of the metal ions

Question 3

How does the charge on metal ions affect metallic bonding

Answer 3

The greater the charge on the metal ions the greater the attraction between the ions and the sea of delocalised electrons and the stronger the metallic bonds .e.g. Na+ and Mg2+
A higher melting point is evidence of stronger bonds in the substance

Question 4

How does the size of the metal ions affect metallic bonding

Answer 4

e smaller the metal ion ,the closer the positive nucleus is to the delocalised electrons this means there is a greater attraction between the two which creates a stronger metallic bond

Question 5

What are the properties of metallic bonding

Answer 5

They have a high melting point due to the string electrostatic attraction between the positive ions and the sea of delocalised electrons
Conduct electricity
Insoluble
Strong
Malleable (ability to be shaped)
Ductile (stretched into a wire)