Question

write the electronic configuration
of 29 cu, 28 cu+, 23 Fe 3+ 24 cr​

Answer 1

Answer:

Here's the answer

29Cu = 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1

28Cu+ = 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10

23Fe3+ = 1s^2 2s^2 2p^6 3s^2 3p^6 3d^5

24Cr = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^5