The atomic numbers of phosphorus, sulphur and potassium are 15, 16 and 19 respectively. The formulae of their ions are P3-, S2- and K+. These ions have the same number of electrons

      

The atomic numbers of phosphorus, sulphur and potassium are 15, 16 and 19 respectively. The formulae of their ions are P3-, S2- and K+. These ions have the same number of electrons
i) Write the electron arrangement of the ions
ii) Arrange the ions in the increasing ionic radius starting with the smallest. Give a reason for the order

  

Answers


John
i) 2.8.8

ii) K+, S2-, P3-
The number of protons reduce in the order given reducing the effective nuclear pull on electrons
johnmulu answered the question on February 2, 2017 at 07:33


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