Question

Anions are formed due to gain of electrons by _________ .

• A. metals
• B. non-metals
• C. noble gases
• D. none of these

Answer 1

The correct option is B non-metals

Anions are formed due to the gain of electrons by non-metals. Thus chlorine gains an electron to form chloride ion.

$Cl+e^{-}\to C{l}^{-}$

Cations are formed due to the loss of electrons by metals. Thus, sodium loses an electron to form sodium cation.

$Na\to N{a}^{+}+e^{-}$

Sodium is metal and chlorine is non metal.