Question

Name the following:
i) The ion formed by the loss of an electron from its neutral atom
ii) The ion formed by the gain of an electron from its neutral atom
iii) An element that loses an electron to form cation

iv) An element that gains an electron to form an anion
v) Ion(s) involved in the formation of ionic compounds.

Answer 1

i) When an atom loses an electron, it becomes a positively charged ion called a $\text{cation}$.

ii) When an atom gains an electron, it becomes negatively charged forming an $\text{anion}$.

iii) An $\text{electropositive}$ element loses an electron to form a cation. $Na$ is one such element, which forms $N{a}^{+}$ cation.

iv) An $\text{electronegative}$ element gains an electron to form an anion. $Cl$ is one such element, which forms $C{l}^{-}$ anion.

v) Ionic compound is formed by the combination of $\text{positively \& negatively charged ions i.e. cations and anions.}$