What is necessary for a metallic bond to form?

The atoms should be in close proximity.
The atoms should be far apart.
The electrons must be attracted to each other.
The nuclei must contain neutrons.

Question

What is necessary for a metallic bond to form?

The atoms should be in close proximity.
The atoms should be far apart. 
The electrons must be attracted to each other.
The nuclei must contain neutrons.

scarlettfarra2000 · Answer

Metallic bond is the bonding between molecules within metals called "alkali reactive force." It is the sharing of many detached electrons between many positive ions, where the electrons act as a "glue" giving the substance a definite structure.

scarlettfarra2000 · Answer

@Grimtalon

niyex · Answer

nice which leaves only one option in the list of option