Which type of bonding involves the complete transfer of a valence electron from a less electronegative atom to a more electronegative a) ionic bonding b) metallic bonding c) covalent bonding d) hydrogen bonding

Option (A) is the correct answer.

Explanation:

When there is difference in electronegativities of two atoms combining together then atom with more electronegativity attracts the electron towards itself from less electronegative atom.

As a result, there will be formation of partial positive charge on less electronagtive atom and a partial negative charge will develop on the atom will more electronegativity.

As a result, there will be formation of ionic bond due to transfer of electron from less electronegative atom to more electronegative atom.

Hence, we can conclude that ionic bonding involves the complete transfer of a valence electron from a less electronegative atom to a more electronegative one.

its first and third is your answer i did the qustion the fourth isnt right