Verified Solution • 2025–26 Session moderate

QNEET-2018-Ch-840: NEET 2018 Chemistry - Class 11 NEET-2018-Ch-840 Solution: Magnesium reacts with an element (X) to form an ionic compound. …

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s22s22p31s^22s^22p^3 the simplest formula for this compound is Mg2X3Mg_2X_3 MgX2MgX_2 Mg2XMg_2X Mg3X2Mg_3X_2

Multiple Choice Options

  • A Mg 2 X 3
  • B MgX 2
  • C Mg 2 X
  • D Mg 3 X 2

Step-by-Step Verified Solution

Electronic configuration of element (X) is 1s 2 2s 2 2p 3 So, valency of X will be 3. Since, valency of Mg is 2. So, formula of compound formed by Mg and X will be Mg 3 X 2 .

Related Learning Resources & Exam Preparation