Question

Which of the following is/are the requirements for the formation of metallic bonds?
(i) Formation of negative ions.
(ii) Formation of positive ions.
(iii) Freely moving electrons.
(iv) Sharing of electrons between two atoms.

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (i) and (iv)

Answer 1

The correct option is B (ii) and (iii)

In a metallic bond, the metal atoms lose electrons to become positively charged and these electrons flow around freely, forming an electron cloud surrounding the metal ion.
Ex: Copper wire contains copper ions(positive) surrounded by the sea of electrons.