Element A is in the 1st group of the modern periodic table. The formula of its ion is:
Valency of an element in the 1st group of the modern periodic table is 1. So, it loses one electron to become A+ and gain a stable octet structure.
Element A is in the 1st group of the Modern Periodic Table. The formula of its ion will be :
Element A is in the 1st group of the modern periodic table. The formula of its ion will be :
An element X is in the 1st group of the modern periodic table. Its ion will be represented as: