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Question

Which is more stable CuCl2andCu2Cl2?


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Solution

  1. Copper is a chemical element present in the periodic table.
  2. It is a metallic element and is present in d-block elements.
  3. The atomic number of Copper is 29 and the mass number is 63.5.
  4. Copper is an exceptional element with electronic configuration1s22s22p63s23p63d104s1.
  5. Copper show such a type of electronic configuration to attain stability.
  6. Copper generally shows two types of oxidation state+1and+2.
  7. The +1 oxidation state of Copper is much more stable compared to the +2oxidation state.
  8. This is because by losing two electrons the electronic configuration changes to1s22s22p63s23p63d9, which is unstable configuration.
  9. But losing one of its electrons the configuration changes to1s22s22p63s23p63d10, and in this way the Cu+1 attains the stability
  10. This happens because in this case all the electrons are filled in the d-orbital.
  11. Therefore, we concluded that CuCl2 is much more stable compared to Cu2Cl2

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