Question

In copper atom, 29 electrons surround its nucleus. Consider two pieces of copper each weighing 10 g. Let us transfer one electron from one piece to another for every 1000 atoms in the piece. The Coulombic force between these two pieces of copper kept 10 cm apart after transfer of electrons will be

\((e=1.6 \times10^{-19}\ C, \frac{1}{4πɛo}=9\times10^9,\)

Avogadro number = 6 x 10²³ per mole and at. wt. of copper = 63.5 g/mol)

(A) 2.08 x 10¹⁴ N

(B) 4.16 x 10¹⁴ N

(C) 6.32 x 10¹⁴ N

(D) More than one of the above 

(E) None of the above

Answer 1

Correct option is (A) 2.08 x 10¹⁴ N