Explain how valence electrons are involved in ionic and metallic bonding

In Ionic bonding, the valence electrons are taken from the less electronegative atom and the more electronegative atom recieves it.

In Covalent bonding, the valence electrons are shared between atoms, which create a bond.  

In Metallic bonding, the valence electrons are de-localized, floating in a sea of electrons.  

answer; /// i do believe that the correct answer is (c)nuclear bond

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.