illustrate stepwise how will you find the valency of the following elements
(a) Chlorine (b) Potassium (c)Phosphorus

1)Cl=2,8,7
valancy =8-7(as its valance electron is more than 5 we must subract with 8)
              =1
2)pottasium=2,8,8,1
    valancy=1
3)phosphorus=2,8,5
valancy=5
  • -1
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