Answer is ion
Atomic no. Of Na = 11
Electron configuration= 2,8,1
Sodium lose 1 electron to gain stable equilibrium and form Na+ ion.
Ions are electrically charged particles formed when atoms lose or gain electrons.
They have the same electronic structures as noble gases.
Metal atoms form positive ions, while non-metal atoms form negative ions.
The strong electrostatic forces of attraction between oppositely charged ions are called ionic bonds.
