What Happens When Chlorine Forms An Ion - Web of +1, making it a positive ion. • chlorine gains an electron, leaving it with 17 protons and 18 electrons. Web for example, when each sodium atom in a sample of sodium metal (group 1) gives up one electron to form a sodium cation, na +,. Since it has 1 more. It has symbol cl and atomic number 17. Chlorine is a chemical element; Web for example, when each sodium atom in a sample of sodium metal (group 1) gives up one electron to form a.
Web for example, when each sodium atom in a sample of sodium metal (group 1) gives up one electron to form a. Since it has 1 more. Chlorine is a chemical element; It has symbol cl and atomic number 17. Web for example, when each sodium atom in a sample of sodium metal (group 1) gives up one electron to form a sodium cation, na +,. • chlorine gains an electron, leaving it with 17 protons and 18 electrons. Web of +1, making it a positive ion.