1. (a)What happens to the metallic character of the element of the element as we move from left to right? (b) What happens to the atomic size as we move from left to right? 2. An element X has atomic number 16.(a) To which group of the periodic table does element X belong? (b) To which period of the periodic table does element X belong? (c) State the number of valence electron and valency of the element X?
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(a)What happens to the metallic character of the element of the element as we move from left to right? (b) What happens to the atomic size as we move from left to right? 2. An element X has atomic number 16.(a) To which group of the periodic table does element X belong? (b) To which period of the periodic table does element X belong? (c) State the number of valence electron and valency of the element X?
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