Show the formation of MgO, NaCl and MgCl2 by the transfer of electrons.
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Formation of MgO: The atomic number of magnesium = 12 Its electronic configuration is K L M 2 , 8 , 2 KLM2,8,2 It has two electrons in its outermost shell. So, the magnesium atom donates its 2 valence electrons and forms a stable magnesium ion, Mg2+ to attain the electronic arrangement of neon gas. M g 2 , 8 , 2 ⟶ M g 2 + 2 , 8 + 2 e − Mg2,8,2⟶Mg2+2,8+2e− The atomic number of oxygen = 8 Electronic configuration = K L 2 , 6 KL2,6 It has six electrons in its valence shell. Therefore, it requires two more electrons to attain the stable electronic arrangement of neon gas. Thus, oxygen accepts two electrons donated by magnesium atom and forms a stable oxide ion, O2-. O 2 , 6 + 2 e − ⟶ O 2 − 2 , 8 O2,6+2e−⟶O2−2,8 The oppositely changed magnesium ions, Mg2+ and oxide ions,O2-, are held together by a strong force of electrostatic attraction to form Magnesium oxide compound Mg2+O2- or MgO. MgO is an ionic compound. Read more on Sarthaks.com - https://www.sarthaks.com/26463/show-the-formation-of-na2o-and-mgo-by-the-transfer-of-electrons