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

Question

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 (A) Mg3X2  (B) Mg2X3  (C) Mg2X  (D) MgX2

Tardigrade Admin · Accepted Answer

Element (X) electronic configuration 1 s2 2 s2 2 p3 So, valency of X will be 3 . Valency of Mg is 2 . Formula of compound formed by Mg and X will be Mg 3 X 2

Q. 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

$M g_{3} X_{2}$

$M g_{2} X_{3}$

$M g_{2} X$

$M g X_{2}$

Element $(X)$ electronic configuration

$1 s^{2} 2 s^{2} 2 p^{3}$

So, valency of $X$ will be $3$ .

Valency of $M g$ is $2$ .

Formula of compound formed by $M g$ and $X$ will be $M g_{3} X_{2}$

Q. Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s22s22p3, the simplest formula for this compound is

Mg3​X2​

Mg2​X3​

Mg2​X

MgX2​