If an atom of chlorine (Cl) were to ionize, it would gain 1 electron. option C is correct.
What is ionization of Cl?
As chlorine comes at the 17th number in the periodic table and to become stable it need one more electron according to the octave rule but it have only 7 electrons in the outermost shell.
Due to the presence of 7 electron in the outermost shell chlorine wants to get stable and it gains the one electron to create an ion with 17 neutrons and 18 electrons and attends negative charge of -1.
Now, it will not called chlorine now it is known as chloride ion as it attend negative charge.
Therefore, an atom of chlorine (Cl) were to ionize, it would gain 1 electron. option C is correct.
Learn more about ionization of Cl, here:
https://brainly.com/question/10333239
#SPJ5
