Q2 of 70 Page 105

The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following is correct?

Cu(II) is more stable than Cu(I) because it has a 2+ charge and is smaller than Cu(I). The electron density and effective nuclear charge is greater for Cu(II) and it forms stronger bonds(high hydration energy) and releases more energy and is more stable.

More from this chapter

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1

Electronic configuration of a transition element X in +3 oxidation state is [Ar]3d5. What is its atomic number?

 3

Metallic radii of some transition elements are given below. Which of these elements will have highest density?

Element Fe Co Ni Cu


Metallic 126 125 125 128


radii/pm


 4

Generally transition elements form coloured salts due to the presence of unpaired electrons. Which of the following compounds will be coloured in solid state?

 5

On addition of sm