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Doctors Medicines MCQs Q&A

  1. Na
  2. Mg
  3. AI
  4. Si
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Option 2 : Mg

In the chemical formula of the chloride it is given XCl2, means two chlorine atom will fulfil the stability criteria (octet/duplet rule) for the central atom, X. Now that is possible only when the central atom has 2 valence electrons which is possible with Magnesium (Mg) and the atom in the group 2 of the periodic table.
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