An element has electronic configuration 2,8,6. 5 (i)To which group and period of the Modern periodic table does it belong? (ii) State its atomic number and valency. (iii) Is it metallic or non metallic? Why? (iv) Identify the element and give the chemical formula of its compound formed with magnesium. (v) Name an element chemically similar to it.
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ans-(i) It's belongs to group 16 and period 3.
(ii) It's atomic number is 16 and valency is 2.
(iii) It is non metallic.
(iv) The element is Sulphur.And the cemical formula formed with magnesium is MgS.
(v) An element chemically similar to its is Oxygen
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