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

(i) and (ii)

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(ii) and (iii)

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(iii) and (iv)

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(i) and (iv)

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Solution

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.
Example: Copper wire contains copper ions(positive) surrounded by the sea of electrons.

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

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. Example: Copper wire contains copper ions(positive) surrounded by the sea of electrons.

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

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.
Example: Copper wire contains copper ions(positive) surrounded by the sea of electrons.