Question

addition of one extra electron in the outermost shell of a chlorine(cl) atom led to the formation of _____​

Answer 1

Answer:

Some atoms have only a few electrons in their outer shell, ... shell and can gain additional valence electrons until they have an octet.

Explanation:

• Atoms that gain extra electrons become negatively charged. A neutral chlorine atom, for example, contains 17 protons and 17 electrons. By adding one more electron we get a negatively charged Cl- ion with a net charge of -1.