Q89
Metals are good conductors of electricity because
A.
The atoms are lightly packed
B.
They contain free electrons
AnswerC.
They have high melting point
D.
All the above
Answer: Option B
Solution
Answer: Option B
Solution:
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.