Magnesium reacts with an element X to form an ionic compound. If the ground state electronic configuration of X is 1 s 2   ,   2 s 2 ,     2 p 3 , the simplest formula for this compound is

Step-by-step solution

Magnesium ion = Mg + 2 The electron configuration of an element describes how electrons are distributed in its atomic orbitals. Electron configurations of atoms follow a standard notation in which all electron-containing atomic subshells (with the number of electrons they hold written in superscript) are placed in a sequence.