D

Durgesh • 8.64K Points
Tutor III Physics

(A) The atoms are lightly packed
(B) They contain free electrons
(C) They have high melting point
(D) All the above
Correct Answer - Option(B)
Explanation by: Durgesh
Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions. 

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