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Group numberIA1HA2IIIA13IVA14VA15VIA16VIIA170182 nd periodLiDOJNeAMgESiHMRTIQuyIn this table H does not represent hydrogen. Some elements are given in their own symbol and position in the periodic table. While others are shown with a letter. With reference to the table answer the following questions : (i) Identify the most electronegative element. (ii) Identify the most reactive element of group 1. (iii) Identify the element from period 3 with least atomic size. (iv) How many valence electrons are present in Q ? (v) Which element from group 2 Would have the least ionization energy ? (vi) Identify the noble gas of the fourth period. (vii) In the compound between A and H what type of bond would be formed and give the molecular formula for the same. |
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Answer» (i) J (ii) R (iii) M (iv) Five (v) T (vi) y-Krypton (vii) Ionic bond. Molecular formula ⟶ A2H |
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