Question

Which of the two ions Ca+2 or Zb+2 is more stable why

Answer 1

                                                                     

Answer :-

Because $Ca^{2+}$  resembles Argon and Argon is Nobel gas ( inert gas ) so it's more stable than $Zn^{2+}$.

                                                                     

May be this is helpful for you

Answer 2

Answer:

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Explanation: