The ions that We've mentioned so far are called monatomic ions, that is, they are ions formed from just one atom. We also come across quite a few polyatomic ions. These ions, which act as discrete units, are electrically billed molecules (a group of bonded atoms with an overall charge). https://potassiumcyanidemsds30381.bligblogging.com/30587815/details-fiction-and-potassium-cyanide-kahan-milta-hai-in-hindi