Chemistry - CHEMICAL BONDING Question with Solution | TestHub
Which of the following does not apply to bonding in metals ?
Options:
Answer:
Solution:
Metallic bonding is not directional like covalent bonding, it is like ionic bonding in the sense that the force of attraction between the positive metal ions and the mobile electrons acts in every direction about the fixed (immobile) metal ions of the metal crystal lattice, but in ionic lattices none of the ions is mobile - a big difference between a metal bond and an ionic bond.
The outer electrons (–) from the original metal atoms are free to move around between the positive metal ions formed (+).
These 'free' or 'delocalised' electrons from the outer shell of the metal atoms are the 'electronic glue' holding the particles together.There is a strong electrical force of attraction between these free electrons (mobile electrons or 'sea' of delocalised electrons) (–) and the 'immobile' positive metal ions (+) that form the giant lattice and this is the metallic bond.
