This atom gains electrons.
If the atom was neutral, it becomes an anion. Since electrons have a (-) charge
This atom become an anion.
A potassium atom will become a cation.
No. An anion is negatively charged because it has gained one or more electrons.
An atom of a nonmetal becomes an ion, specifically an anion, by attracting to itself one or more electrons from one or more atoms of one or more other and less electronegative elements.
When nonmetals bond with metals, the nonmetals will take electrons from the metal to fill their valence electron shell and attempt to empty the valence shell of the metal. The electrical attraction of the (+) charged metal and the (-) charged nonmetal form an ionic bond between the two.
In this case the atom become an anion with the charge -1.
accepts an electron to become the chloride anion, Cl-
This neutral atom become a cation or an anion.
the number of electrons in the outer shell .. for metals its less than 4 .. for non metals its more than 4 .. for semi its 4
Iodine only needs to gain one electron to become an anion.
Then this atom will become an anion (negatively charged) Example: Cl + e- --> Cl-