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 X_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

M g_{2} X

No worries! We‘ve got your back. Try BYJU‘S free classes today!

M g_{2} X_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

M g_{3} X_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $M g_{3} X_{2}$
Magnesium is an alkaline earth metal and forms $M g^{2 +}$ ion.
The element X with ground state electronic configuration of $1 s^{2} 2 s^{2} 2 p^{3}$ , so valency of X will be 3. Thus, it will form $X^{3 -}$ .

The charges on cation and anion will be balanced when $3 M g^{2 +}$ ions will combine with $2 X^{3 -}$ ions to form $M g_{3} X_{2}$ .

Hence, option (c) is correct.

Suggest Corrections

Similar questions

Q. The atomic number of element with electronic configuration:

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

is:

Q. If the nitrogen atom had electronic configuration

{1 s}^{7}

. This configuration has lower energy than that of the normal ground state configuration

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

because the electrons would be closer to the nucleus but

{1 s}^{7}

is not observed because it violates

Q. The electronic configuration of an element is

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{1}

. This represents its:

Element X has an electronic configuration of (2,8,2) and Element Y has an electronic configuration of (2,6).The compound formed by X and Y is covalent.

Q. The correct ground state electronic configuration of sodium is: 1

s^{2}

s^{2}

p^{6}

s^{1}

Join BYJU'S Learning Program

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s2 2s2 2p3, the simplest formula for this compound is:

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: