Now first= which statement describes the difference between an atom of silver and an atom of gold? a. they have the same number of electrons. b. the atomic numbers are the same. c. their atomic masses are different. d. they have exactly the same isotopes.

the answer is c. their atomic masses are different clearly because an atom of gold has 79 protons and the atom can be divided multiple times. An atom of silver has an atomic number of 47. 47 electrons. Clearly different. Hope it helps :)

Explanation:

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.