Question

Electron arrangement of chloride ion resembles with which noble gas arrangement?​

Answer 1

Answer:

Argon

Now, we observe that chlorine is one electron less than achieving the stable electronic configuration of its nearest Noble gas, Argon. Therefore, Chlorine gains an electron (remember not from any empty space, either from metal or a semimetal) and chloride ion is formed, with electronic configuration of 2, 8, 8.