Asked by Mike

For a chlorine atom to become a chloride ion, the chlorine atom must
A. gain one electron
B. lose one electron
C. share one electron
D. lose all its electrons
Answered by DrBob222
a. Cl has 17 protons with a 1+ charge each for a total of 17+ charges. It has 17 electrons for a 17- charge; therefore, the chlorine atoms has a zero charge. BY gaining one (1) electron it now has 17+ and 18- or a net of 1- charge and is now a Cl^-. Note; All atoms have a zero charge.
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