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The second ionisation enthalpies of both...

The second ionisation enthalpies of both Cr and Cu are higher than those of the next element. Explain.

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To explain why the second ionization enthalpies of both chromium (Cr) and copper (Cu) are higher than those of the next elements (manganese (Mn) and zinc (Zn), respectively), we can analyze their electronic configurations and the stability associated with them. ### Step-by-Step Solution: 1. **Understanding Ionization Energy**: - Ionization energy is the energy required to remove an electron from an isolated gaseous atom. The second ionization energy refers to the energy required to remove a second electron after the first has already been removed. 2. **Electronic Configuration of Chromium (Cr)**: ...
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