Consider an atom of gold in which the nucleus contains 79 protons and 118 neutrons.If it is doubly ionized,what is the charge of the gold ion and how many electrons remain in the ion?
A)The gold ion has a charge of +2 and 77 electrons.
B)The gold ion has a charge of +2 and 79 electrons.
C)The gold ion has a charge of -2 and 77 electrons.
D)The gold ion has a charge of +2 and 2 electrons.
E)The gold ion has a charge of +79 and no electrons.

Question

Quizplus · Accepted Answer

A gold atom normally has 79 electrons. If it is doubly ionized, it loses 2 electrons, leaving it with 77 electrons. The loss of electrons gives it a positive charge, specifically +2.

Consider an Atom of Gold in Which the Nucleus Contains