Question

An element X is in the $1^{st}$ group of the modern periodic table. Its ion will be represented as:

• A. $X^{+}$
• B. $X^{2+}$
• C. $X^{-}$
• D. $X^{2-}$

Answer 1

The correct option is A $X^{+}$

The elements in the $1^{st}$ group of the periodic table have only one valence electron. So, their valency is 1. Thus, they tend to lose only one electron to form a uni-positively charged ion $\left(A^{+}\right)$ and gaining the nearest noble gas configuration.