Question

plz help with both of the parts​

Answer 1

Answer:

a) - atoms are arranged in fixed circular paths around the nucleus known as orbits.

b) - They are free to revolve around that's why they can easily conduct electricity.

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Answer 2

Answer:

a) In a metallic solid atoms are arranged in a lattice-like 3D structure where there is a regular array of metal cations surrounded by a sea of delocalised electrons. ... These electrons no longer belong to one single atom but will move between atoms in the solid structure.

b) Metals conduct electricity because the electrons inside the metal are relatively free to move. So when electricity is pass through metals, electrons carry electricity and spread it all over the metal. The mobility of electrons is the reason why metals conduct electricity.

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