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15. Elements Z is in third period and group 17 of the Periodic Table.(i) It is a metal of non-metal ?(i) What is the number of valence electrons in its atom?(ii) What is its valency ?(iv) What is the name of the element ? |
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Answer» i) Non-metalii) seven valence electrons, iii)valency = 1iv)Halogens |
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