Metallic Bonding Flashcards
What is the arrangement of metallic Bonds
When metallic ions are formed, electrons are being lost. This means that when metallic bonds are formed, there will be a SEA OF DELOCALIZED electrons because electrons become free to move around.
The metallic bond consists of positively charged ions in the middle of a sea of delocalized electrons.
The bond is held together by the strong electrostatic attraction between the positively charged metal ions and the negatively charged delocalized electrons.
Why is the bonding stronger in Sodium than Magnesium
Because sodium has to have only 1 electron lost to form ions. Therefore, for each sodium ion, there is one delocalized electron. However, for each Magnesium ion, there are 2 delocalized electrons. This means that the electrostatic forces of attraction between the electrons and the metal ions are greater in Magnesium than in Sodium, making Magnesium have a higher boiling and melting point than sodium.
Why do metals conduct electricity
Because the delocalized electrons in the metallic bond are free to move throughout the structure. Therefore, the electrons are able to carry a charge.
Why are metals malleable
Because if we bend a metal, the positive ions are still attracted to the negative electrons. This means that the bending of the metal will not affect the bonding between the ions and electrons, therefore, metals are not brittle.
**same explanation for why metals are ductile”
