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What is the valency of

  1. so for all the chemical formulas if there is no subscript (for the valency of the element) does it mean it is a one or do i have
  2. what valency ?how can we find valency?explain.
  3. 1. a)Differentiate between valency and oxidation numberb)Write the valency and oxidation numbers of the following elements: Na,
  4. I'm drawing a Lewis structure for hydrogen cyanide using nitrogen with a valency of 3. Would I still need 2 dots after the N or
  5. An element x with valency a and an element y with valency b combine to form a compound the formula of the compound is
  6. I have to draw Lewis structures for hydrogen cyanide and cyanogen with nitrogen valency of three. Would I still need 2 dots
  7. What is the valency of E from E2(O3).
  8. valency of astatine
  9. Valency for chromium and
  10. Write the valency of E from EO3.