Question

The number of elements in between Cr and cu are​

Answer 1

Answer:

Electronic configuration of Cr is 4s1 3d5 and the electronic configuration of Cu is 3d10 4s1. Since both are stable due to having half filled or fully filled orbital thus Cr and Cu show higher ionisation enthalpies than their neighbours

Answer 2

There are four elements in between Cr and Cu:

• In the periodic table of elements, Cr has an atomic number of 24.
• The atomic number of Cu in the periodic table is 29.
• The elements in between Cr and Cu are as follows:

1. Mn - Manganese - 25 (atomic number)
2. Fe - Iron - 26 (atomic number)
3. Co - Cobalt - 27 (atomic number)
4. Ni - Nickel - 28 (atomic number)

Thus, there are four elements in between Cr and Cu.