An element(X) which has the electronic configuration 2.8.2 combines with
chlorine and oxygen to form Y and Z
(i) Identify the element X
(ii) Write the chemical formula of compounds Y and Z
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X(2,8,2) - This element is Magnesium. It belongs to group 2 of the periodic table.
Mg2++NO3−→Mg(NO3)2[Magnesium Nitrate]
Mg2++(SO4)2−→Mg(SO4)[Magnesium Sulphate]
Mg2++(PO4)3−→Mg3(PO4)2[Magnesium Sulphate]
Element X which is Magnesium will form ionic compounds by losing 2 electrons from its valence shell.
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